Merge branch 'dgud/win32_unicode'

* dgud/win32_unicode:
  erts: Windows, convert erlsrv to use widestring
  erts: Window start_erl now uses widechars/unicode
  Quote windows paths with spaces
  Handle space in paths in test Makefiles
  erts: Fix windows widestring args and paths in tools
  erts: Windows, use widechars for all paths during startup

OTP-11135

7 files changed, 530 insertions, 310 deletions

diff --git a/erts/etc/common/ct_run.c b/erts/etc/common/ct_run.c
index 853785dcd1..bb59b93998 100644
--- a/erts/etc/common/ct_run.c
+++ b/erts/etc/common/ct_run.c
@@ -117,9 +117,14 @@ char *strerror(int errnum)
 }
 #endif /* !HAVE_STRERROR */
 
-int
-main(int argc, char** argv)
+#ifdef __WIN32__
+int wmain(int argc, wchar_t **wcargv)
+{
+    char** argv;
+#else
+int main(int argc, char** argv)
 {
+#endif
     int eargv_size;
     int eargc_base;		/* How many arguments in the base of eargv. */
     char* emulator;
@@ -129,7 +134,21 @@ main(int argc, char** argv)
     int dist_mode;
     int cnt;
     int erl_args;
-    char** argv0 = argv;
+    char** argv0;
+
+#ifdef __WIN32__
+    int i;
+    int len;
+    /* Convert argv to utf8 */
+    argv = malloc((argc+1) * sizeof(char*));
+    for (i=0; i<argc; i++) {
+	len = WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, NULL, 0, NULL, NULL);
+	argv[i] = malloc(len*sizeof(char));
+	WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, argv[i], len, NULL, NULL);
+    }
+    argv[argc] = NULL;
+#endif
+    argv0 = argv;
 
     emulator = get_default_emulator(argv[0]);
 
@@ -295,48 +314,50 @@ push_words(char* src)
 	PUSH(strsave(sbuf));
 }
 #ifdef __WIN32__
-char *make_commandline(char **argv)
+wchar_t *make_commandline(char **argv)
 {
-    static char *buff = NULL;
+    static wchar_t *buff = NULL;
     static int siz = 0;
-    int num = 0;
-    char **arg, *p;
+    int num = 0, len;
+    char **arg;
+    wchar_t *p;
 
-    if (*argv == NULL) {
-	return "";
+    if (*argv == NULL) { 
+	return L"";
     }
     for (arg = argv; *arg != NULL; ++arg) {
 	num += strlen(*arg)+1;
     }
     if (!siz) {
 	siz = num;
-	buff = malloc(siz*sizeof(char));
+	buff = (wchar_t *) emalloc(siz*sizeof(wchar_t));
     } else if (siz < num) {
 	siz = num;
-	buff = realloc(buff,siz*sizeof(char));
+	buff = (wchar_t *) realloc(buff,siz*sizeof(wchar_t));
     }
     p = buff;
+    num=0;
     for (arg = argv; *arg != NULL; ++arg) {
-	strcpy(p,*arg);
-	p+=strlen(*arg);
-	*p++=' ';
+	len = MultiByteToWideChar(CP_UTF8, 0, *arg, -1, p, siz);
+	p+=(len-1);
+	*p++=L' ';
     }
-    *(--p) = '\0';
+    *(--p) = L'\0';
 
     if (debug) {
-	printf("Processed commandline:%s\n",buff);
+	printf("Processed command line:%S\n",buff);
     }
     return buff;
 }
 
 int my_spawnvp(char **argv)
 {
-    STARTUPINFO siStartInfo;
+    STARTUPINFOW siStartInfo;
     PROCESS_INFORMATION piProcInfo;
     DWORD ec;
 
-    memset(&siStartInfo,0,sizeof(STARTUPINFO));
-    siStartInfo.cb = sizeof(STARTUPINFO);
+    memset(&siStartInfo,0,sizeof(STARTUPINFOW));
+    siStartInfo.cb = sizeof(STARTUPINFOW);
     siStartInfo.dwFlags = STARTF_USESTDHANDLES;
     siStartInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
     siStartInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
@@ -345,7 +366,7 @@ int my_spawnvp(char **argv)
     siStartInfo.dwFlags |= STARTF_USESHOWWINDOW;
 
 
-    if (!CreateProcess(NULL,
+    if (!CreateProcessW(NULL,
 		       make_commandline(argv),
 		       NULL,
 		       NULL,
@@ -432,6 +453,18 @@ strsave(char* string)
     return p;
 }
 
+static int
+file_exists(char *progname)
+{
+#ifdef __WIN32__
+    wchar_t wcsbuf[MAXPATHLEN];
+    MultiByteToWideChar(CP_UTF8, 0, progname, -1, wcsbuf, MAXPATHLEN);
+    return (_waccess(wcsbuf, 0) != -1);
+#else
+    return (access(progname, 1) != -1);
+#endif
+}
+
 static char*
 get_default_emulator(char* progname)
 {
@@ -445,15 +478,8 @@ get_default_emulator(char* progname)
     for (s = sbuf+strlen(sbuf); s >= sbuf; s--) {
 	if (IS_DIRSEP(*s)) {
 	    strcpy(s+1, ERL_NAME);
-#ifdef __WIN32__
-	    if (_access(sbuf, 0) != -1) {
+	    if(file_exists(sbuf))
 		return strsave(sbuf);
-	    }
-#else
-	    if (access(sbuf, 1) != -1) {
-		return strsave(sbuf);
-	    }
-#endif
 	    break;
 	}
     }
diff --git a/erts/etc/common/dialyzer.c b/erts/etc/common/dialyzer.c
index b8a7a2bf03..09afb25182 100644
--- a/erts/etc/common/dialyzer.c
+++ b/erts/etc/common/dialyzer.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2006-2012. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2013. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -104,20 +104,31 @@ get_env(char *key)
 {
 #ifdef __WIN32__
     DWORD size = 32;
-    char *value = NULL;
+    char  *value=NULL;
+    wchar_t *wcvalue = NULL;
+    wchar_t wckey[256];
+    int len; 
+
+    MultiByteToWideChar(CP_UTF8, 0, key, -1, wckey, 256);
+    
     while (1) {
 	DWORD nsz;
-	if (value)
-	    free(value);
-	value = emalloc(size);
+	if (wcvalue)
+	    free(wcvalue);
+	wcvalue = (wchar_t*) emalloc(size*sizeof(wchar_t));
 	SetLastError(0);
-	nsz = GetEnvironmentVariable((LPCTSTR) key, (LPTSTR) value, size);
+	nsz = GetEnvironmentVariableW(wckey, wcvalue, size);
 	if (nsz == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
-	    free(value);
+	    free(wcvalue);
 	    return NULL;
 	}
-	if (nsz <= size)
+	if (nsz <= size) {
+	    len = WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, NULL, 0, NULL, NULL);
+	    value = emalloc(len*sizeof(char));
+	    WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, value, len, NULL, NULL);
+	    free(wcvalue);
 	    return value;
+	}
 	size = nsz;
     }
 #else
@@ -134,9 +145,14 @@ free_env_val(char *value)
 #endif
 }
 
-int
-main(int argc, char** argv)
+#ifdef __WIN32__
+int wmain(int argc, wchar_t **wcargv)
+{
+    char** argv;
+#else
+int main(int argc, char** argv)
 {
+#endif
     int eargv_size;
     int eargc_base;		/* How many arguments in the base of eargv. */
     char* emulator;
@@ -144,6 +160,18 @@ main(int argc, char** argv)
     int i;
     int need_shell = 0;
 
+#ifdef __WIN32__
+    int len;
+    /* Convert argv to utf8 */
+    argv = malloc((argc+1) * sizeof(char*));
+    for (i=0; i<argc; i++) {
+	len = WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, NULL, 0, NULL, NULL);
+	argv[i] = malloc(len*sizeof(char));
+	WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, argv[i], len, NULL, NULL);
+    }
+    argv[argc] = NULL;
+#endif
+
     env = get_env("DIALYZER_EMULATOR");
     emulator = env ? env : get_default_emulator(argv[0]);
 
@@ -260,49 +288,52 @@ push_words(char* src)
     if (sbuf[0])
 	PUSH(strsave(sbuf));
 }
+
 #ifdef __WIN32__
-char *make_commandline(char **argv)
+wchar_t *make_commandline(char **argv)
 {
-    static char *buff = NULL;
+    static wchar_t *buff = NULL;
     static int siz = 0;
-    int num = 0;
-    char **arg, *p;
+    int num = 0, len;
+    char **arg;
+    wchar_t *p;
 
     if (*argv == NULL) { 
-	return "";
+	return L"";
     }
     for (arg = argv; *arg != NULL; ++arg) {
 	num += strlen(*arg)+1;
     }
     if (!siz) {
 	siz = num;
-	buff = malloc(siz*sizeof(char));
+	buff = (wchar_t *) emalloc(siz*sizeof(wchar_t));
     } else if (siz < num) {
 	siz = num;
-	buff = realloc(buff,siz*sizeof(char));
+	buff = (wchar_t *) realloc(buff,siz*sizeof(wchar_t));
     }
     p = buff;
+    num=0;
     for (arg = argv; *arg != NULL; ++arg) {
-	strcpy(p,*arg);
-	p+=strlen(*arg);
-	*p++=' ';
+	len = MultiByteToWideChar(CP_UTF8, 0, *arg, -1, p, siz);
+	p+=(len-1);
+	*p++=L' ';
     }
-    *(--p) = '\0';
+    *(--p) = L'\0';
 
     if (debug) {
-	printf("Processed commandline:%s\n",buff);
+	printf("Processed command line:%S\n",buff);
     }
     return buff;
 }
 
 int my_spawnvp(char **argv)
 {
-    STARTUPINFO siStartInfo;
+    STARTUPINFOW siStartInfo;
     PROCESS_INFORMATION piProcInfo;
     DWORD ec;
 
-    memset(&siStartInfo,0,sizeof(STARTUPINFO));
-    siStartInfo.cb = sizeof(STARTUPINFO); 
+    memset(&siStartInfo,0,sizeof(STARTUPINFOW));
+    siStartInfo.cb = sizeof(STARTUPINFOW); 
     siStartInfo.dwFlags = STARTF_USESTDHANDLES;
     siStartInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
     siStartInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
@@ -311,7 +342,7 @@ int my_spawnvp(char **argv)
     siStartInfo.dwFlags |= STARTF_USESHOWWINDOW;
 
 
-    if (!CreateProcess(NULL, 
+    if (!CreateProcessW(NULL, 
 		       make_commandline(argv),
 		       NULL, 
 		       NULL, 
@@ -398,6 +429,18 @@ strsave(char* string)
     return p;
 }
 
+static int 
+file_exists(char *progname) 
+{
+#ifdef __WIN32__
+    wchar_t wcsbuf[MAXPATHLEN];
+    MultiByteToWideChar(CP_UTF8, 0, progname, -1, wcsbuf, MAXPATHLEN);
+    return (_waccess(wcsbuf, 0) != -1);
+#else
+    return (access(progname, 1) != -1);
+#endif
+}
+
 static char*
 get_default_emulator(char* progname)
 {
@@ -411,15 +454,8 @@ get_default_emulator(char* progname)
     for (s = sbuf+strlen(sbuf); s >= sbuf; s--) {
 	if (IS_DIRSEP(*s)) {
 	    strcpy(s+1, ERL_NAME);
-#ifdef __WIN32__
-	    if (_access(sbuf, 0) != -1) {
+	    if(file_exists(sbuf))
 		return strsave(sbuf);
-	    }
-#else
-	    if (access(sbuf, 1) != -1) {
-		return strsave(sbuf);
-	    }
-#endif
 	    break;
 	}
     }
diff --git a/erts/etc/common/erlc.c b/erts/etc/common/erlc.c
index c2d7c7c76d..add65b87ca 100644
--- a/erts/etc/common/erlc.c
+++ b/erts/etc/common/erlc.c
@@ -114,20 +114,31 @@ get_env(char *key)
 {
 #ifdef __WIN32__
     DWORD size = 32;
-    char *value = NULL;
+    char  *value=NULL;
+    wchar_t *wcvalue = NULL;
+    wchar_t wckey[256];
+    int len; 
+
+    MultiByteToWideChar(CP_UTF8, 0, key, -1, wckey, 256);
+    
     while (1) {
 	DWORD nsz;
-	if (value)
-	    free(value);
-	value = emalloc(size);
+	if (wcvalue)
+	    free(wcvalue);
+	wcvalue = (wchar_t *) emalloc(size*sizeof(wchar_t));
 	SetLastError(0);
-	nsz = GetEnvironmentVariable((LPCTSTR) key, (LPTSTR) value, size);
+	nsz = GetEnvironmentVariableW(wckey, wcvalue, size);
 	if (nsz == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
-	    free(value);
+	    free(wcvalue);
 	    return NULL;
 	}
-	if (nsz <= size)
+	if (nsz <= size) {
+	    len = WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, NULL, 0, NULL, NULL);
+	    value = emalloc(len*sizeof(char));
+	    WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, value, len, NULL, NULL);
+	    free(wcvalue);
 	    return value;
+	}
 	size = nsz;
     }
 #else
@@ -144,16 +155,32 @@ free_env_val(char *value)
 #endif
 }
 
-
-int
-main(int argc, char** argv)
+#ifdef __WIN32__
+int wmain(int argc, wchar_t **wcargv)
+{
+    char** argv;
+#else
+int main(int argc, char** argv)
 {
-    char cwd[MAXPATHLEN];	/* Current working directory. */
+#endif
     int eargv_size;
     int eargc_base;		/* How many arguments in the base of eargv. */
     char* emulator;
     char *env;
 
+#ifdef __WIN32__
+    int i;
+    int len;
+    /* Convert argv to utf8 */
+    argv = malloc((argc+1) * sizeof(char*));
+    for (i=0; i<argc; i++) {
+	len = WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, NULL, 0, NULL, NULL);
+	argv[i] = malloc(len*sizeof(char));
+	WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, argv[i], len, NULL, NULL);
+    }
+    argv[argc] = NULL;
+#endif
+
     env = get_env("ERLC_EMULATOR");
     emulator = env ? env : get_default_emulator(argv[0]);
 
@@ -194,20 +221,7 @@ main(int argc, char** argv)
 
     /*
      * Push standard arguments to Erlang.
-     *
-     * The @cwd argument was once needed, but from on R13B02 is optional.
-     * For maximum compatibility between erlc and erl of different versions,
-     * still provide the @cwd argument, unless it is too long to be
-     * represented as an atom.
      */
-    if (getcwd(cwd, sizeof(cwd)) == NULL)
-	error("Failed to get current working directory: %s", strerror(errno));
-#ifdef __WIN32__
-    (void) GetShortPathName(cwd, cwd, sizeof(cwd));
-#endif    
-    if (strlen(cwd) < 256) {
-	PUSH2("@cwd", cwd);
-    }
 
     /*
      * Parse all command line switches.
@@ -520,48 +534,50 @@ push_words(char* src)
 	PUSH(strsave(sbuf));
 }
 #ifdef __WIN32__
-char *make_commandline(char **argv)
+wchar_t *make_commandline(char **argv)
 {
-    static char *buff = NULL;
+    static wchar_t *buff = NULL;
     static int siz = 0;
-    int num = 0;
-    char **arg, *p;
+    int num = 0, len;
+    char **arg;
+    wchar_t *p;
 
     if (*argv == NULL) { 
-	return "";
+	return L"";
     }
     for (arg = argv; *arg != NULL; ++arg) {
 	num += strlen(*arg)+1;
     }
     if (!siz) {
 	siz = num;
-	buff = malloc(siz*sizeof(char));
+	buff = (wchar_t *) emalloc(siz*sizeof(wchar_t));
     } else if (siz < num) {
 	siz = num;
-	buff = realloc(buff,siz*sizeof(char));
+	buff = (wchar_t *) realloc(buff,siz*sizeof(wchar_t));
     }
     p = buff;
+    num=0;
     for (arg = argv; *arg != NULL; ++arg) {
-	strcpy(p,*arg);
-	p+=strlen(*arg);
-	*p++=' ';
+	len = MultiByteToWideChar(CP_UTF8, 0, *arg, -1, p, siz);
+	p+=(len-1);
+	*p++=L' ';
     }
-    *(--p) = '\0';
+    *(--p) = L'\0';
 
     if (debug) {
-	printf("Processed commandline:%s\n",buff);
+	printf("Processed command line:%S\n",buff);
     }
     return buff;
 }
 
 int my_spawnvp(char **argv)
 {
-    STARTUPINFO siStartInfo;
+    STARTUPINFOW siStartInfo;
     PROCESS_INFORMATION piProcInfo;
     DWORD ec;
 
-    memset(&siStartInfo,0,sizeof(STARTUPINFO));
-    siStartInfo.cb = sizeof(STARTUPINFO); 
+    memset(&siStartInfo,0,sizeof(STARTUPINFOW));
+    siStartInfo.cb = sizeof(STARTUPINFOW); 
     siStartInfo.dwFlags = STARTF_USESTDHANDLES;
     siStartInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
     siStartInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
@@ -570,7 +586,7 @@ int my_spawnvp(char **argv)
     siStartInfo.dwFlags |= STARTF_USESHOWWINDOW;
 
 
-    if (!CreateProcess(NULL, 
+    if (!CreateProcessW(NULL, 
 		       make_commandline(argv),
 		       NULL, 
 		       NULL, 
@@ -709,6 +725,18 @@ strsave(char* string)
   return p;
 }
 
+static int 
+file_exists(char *progname) 
+{
+#ifdef __WIN32__
+    wchar_t wcsbuf[MAXPATHLEN];
+    MultiByteToWideChar(CP_UTF8, 0, progname, -1, wcsbuf, MAXPATHLEN);
+    return (_waccess(wcsbuf, 0) != -1);
+#else
+    return (access(progname, 1) != -1);
+#endif
+}
+
 static char*
 get_default_emulator(char* progname)
 {
@@ -722,15 +750,8 @@ get_default_emulator(char* progname)
     for (s = sbuf+strlen(sbuf); s >= sbuf; s--) {
 	if (IS_DIRSEP(*s)) {
 	    strcpy(s+1, ERL_NAME);
-#ifdef __WIN32__
-	    if (_access(sbuf, 0) != -1) {
+	    if(file_exists(sbuf))
 		return strsave(sbuf);
-	    }
-#else
-	    if (access(sbuf, 1) != -1) {
-		return strsave(sbuf);
-	    }
-#endif
 	    break;
 	}
     }
diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c
index 01134dd718..f72930ea2a 100644
--- a/erts/etc/common/erlexec.c
+++ b/erts/etc/common/erlexec.c
@@ -42,7 +42,7 @@
 #define DEFAULT_PROGNAME "erl"
 
 #ifdef __WIN32__
-#define INI_FILENAME "erl.ini"
+#define INI_FILENAME L"erl.ini"
 #define INI_SECTION "erlang"
 #define DIRSEP "\\"
 #define PATHSEP ";"
@@ -1173,11 +1173,14 @@ start_epmd(char *epmd)
 	strcat(epmd, arg1);
     }
     {
-	STARTUPINFO start;
+	wchar_t wcepmd[MAXPATHLEN+100];
+	STARTUPINFOW start;
 	PROCESS_INFORMATION pi;
 	memset(&start, 0, sizeof (start));
 	start.cb = sizeof (start);
-	if (!CreateProcess(NULL, epmd, NULL, NULL, FALSE, 
+	MultiByteToWideChar(CP_UTF8, 0, epmd, -1, wcepmd, MAXPATHLEN+100);
+
+	if (!CreateProcessW(NULL, wcepmd, NULL, NULL, FALSE, 
 			       CREATE_DEFAULT_ERROR_MODE | DETACHED_PROCESS,
 			       NULL, NULL, &start, &pi))
 	    result = -1;
@@ -1371,53 +1374,49 @@ static void get_start_erl_data(char *file)
 }
 
 
-static char *replace_filename(char *path, char *new_base) 
+static wchar_t *replace_filename(wchar_t *path, wchar_t *new_base) 
 {
-    int plen = strlen(path);
-    char *res = emalloc((plen+strlen(new_base)+1)*sizeof(char));
-    char *p;
+    int plen = wcslen(path);
+    wchar_t *res = (wchar_t *) emalloc((plen+wcslen(new_base)+1)*sizeof(wchar_t));
+    wchar_t *p;
 
-    strcpy(res,path);
-    for (p = res+plen-1 ;p >= res && *p != '\\'; --p)
+    wcscpy(res,path);
+    for (p = res+plen-1 ;p >= res && *p != L'\\'; --p)
         ;
-    *(p+1) ='\0';
-    strcat(res,new_base);
+    *(p+1) =L'\0';
+    wcscat(res,new_base);
     return res;
 }
 
-static char *path_massage(char *long_path)
+static char *path_massage(wchar_t *long_path)
 {
      char *p;
-
-     p = emalloc(MAX_PATH+1);
-     strcpy(p, long_path);
-     GetShortPathName(p, p, MAX_PATH);
+     int len;
+     len = WideCharToMultiByte(CP_UTF8, 0, long_path, -1, NULL, 0, NULL, NULL);
+     p = emalloc(len*sizeof(char));
+     WideCharToMultiByte(CP_UTF8, 0, long_path, -1, p, len, NULL, NULL);
      return p;
 }
     
 static char *do_lookup_in_section(InitSection *inis, char *name, 
-				  char *section, char *filename, int is_path)
+				  char *section, wchar_t *filename, int is_path)
 {
     char *p = lookup_init_entry(inis, name);
 
     if (p == NULL) {
-	error("Could not find key %s in section %s of file %s",
+	error("Could not find key %s in section %s of file %S",
 	      name,section,filename);
     }
 
-    if (is_path) {
-	return path_massage(p);
-    } else {
-	return strsave(p);
-    }
+    return strsave(p);
 }
 
-
+// Setup bindir, rootdir and progname as utf8 buffers
 static void get_parameters(int argc, char** argv)
 {
-    char *p;
-    char buffer[MAX_PATH];
-    char *ini_filename;
+    wchar_t *p;
+    wchar_t buffer[MAX_PATH];
+    wchar_t *ini_filename;
     HANDLE module = GetModuleHandle(NULL); /* This might look strange, but we want the erl.ini 
 					      that resides in the same dir as erl.exe, not 
 					      an erl.ini in our directory */
@@ -1428,34 +1427,35 @@ static void get_parameters(int argc, char** argv)
         error("Cannot GetModuleHandle()");
     }
 
-    if (GetModuleFileName(module,buffer,MAX_PATH) == 0) {
+    if (GetModuleFileNameW(module,buffer,MAX_PATH) == 0) {
         error("Could not GetModuleFileName");
     }
 
     ini_filename = replace_filename(buffer,INI_FILENAME);
 
     if ((inif = load_init_file(ini_filename)) == NULL) {
+	wchar_t wbindir[MAX_PATH];
+	wchar_t wrootdir[MAX_PATH];
+
 	/* Assume that the path is absolute and that
 	   it does not contain any symbolic link */
-	
-	char buffer[MAX_PATH];
-	
+
 	/* Determine bindir */
-	if (GetEnvironmentVariable("ERLEXEC_DIR", buffer, MAX_PATH) == 0) {
-	    strcpy(buffer, ini_filename);
-	    for (p = buffer+strlen(buffer)-1; p >= buffer && *p != '\\'; --p)
+	if (GetEnvironmentVariableW(L"ERLEXEC_DIR", buffer, MAX_PATH) == 0) {
+	    wcscpy(buffer, ini_filename);
+	    for (p = buffer+wcslen(buffer)-1; p >= buffer && *p != L'\\'; --p)
 		;
-	    *p ='\0';
+	    *p = L'\0';
 	}
 	bindir = path_massage(buffer);
 
 	/* Determine rootdir */
-	for (p = buffer+strlen(buffer)-1; p >= buffer && *p != '\\'; --p)
+	for (p = buffer+wcslen(buffer)-1; p >= buffer && *p != L'\\'; --p)
 	    ;
 	p--;
-	for (;p >= buffer && *p != '\\'; --p)
+	for (;p >= buffer && *p != L'\\'; --p)
 	    ;
-	*p ='\0';
+	*p =L'\0';
 	rootdir = path_massage(buffer);
 
 	/* Hardcoded progname */
diff --git a/erts/etc/common/escript.c b/erts/etc/common/escript.c
index 118bc6ef90..c92fedee4b 100644
--- a/erts/etc/common/escript.c
+++ b/erts/etc/common/escript.c
@@ -45,7 +45,8 @@ static int eargc;		/* Number of arguments in eargv. */
 #  define QUOTE(s) possibly_quote(s)
 #  define IS_DIRSEP(c) ((c) == '/' || (c) == '\\')
 #  define DIRSEPSTR "\\"
-#  define PATHSEPSTR ";"
+#  define LDIRSEPSTR L"\\"
+#  define LPATHSEPSTR L";"
 #  define PMAX MAX_PATH
 #  define ERL_NAME "erl.exe"
 #else
@@ -112,20 +113,31 @@ get_env(char *key)
 {
 #ifdef __WIN32__
     DWORD size = 32;
-    char *value = NULL;
+    char  *value=NULL;
+    wchar_t *wcvalue = NULL;
+    wchar_t wckey[256];
+    int len; 
+
+    MultiByteToWideChar(CP_UTF8, 0, key, -1, wckey, 256);
+    
     while (1) {
 	DWORD nsz;
-	if (value)
-	    efree(value);
-	value = emalloc(size);
+	if (wcvalue)
+	    efree(wcvalue);
+	wcvalue = (wchar_t *) emalloc(size*sizeof(wchar_t));
 	SetLastError(0);
-	nsz = GetEnvironmentVariable((LPCTSTR) key, (LPTSTR) value, size);
+	nsz = GetEnvironmentVariableW(wckey, wcvalue, size);
 	if (nsz == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
-	    efree(value);
+	    efree(wcvalue);
 	    return NULL;
 	}
-	if (nsz <= size)
+	if (nsz <= size) {
+	    len = WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, NULL, 0, NULL, NULL);
+	    value = emalloc(len*sizeof(char));
+	    WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, value, len, NULL, NULL);
+	    efree(wcvalue);
 	    return value;
+	}
 	size = nsz;
     }
 #else
@@ -145,6 +157,88 @@ free_env_val(char *value)
  * Find absolute path to this program
  */
 
+#ifdef __WIN32__
+static char *
+find_prog(char *origpath)
+{
+    wchar_t relpath[PMAX];
+    wchar_t abspath[PMAX];
+
+    if (strlen(origpath) >= PMAX)
+        error("Path too long");
+
+    MultiByteToWideChar(CP_UTF8, 0, origpath, -1, relpath, PMAX);
+
+    if (wcsstr(relpath, LDIRSEPSTR) == NULL) {
+        /* Just a base name */
+	int sz;
+        wchar_t *envpath;
+	sz = GetEnvironmentVariableW(L"PATH", NULL, 0);
+        if (sz) {	    
+            /* Try to find the executable in the path */
+            wchar_t dir[PMAX];
+            wchar_t *beg;
+            wchar_t *end;
+
+	    HANDLE dir_handle;	        /* Handle to directory. */
+	    wchar_t wildcard[PMAX];	/* Wildcard to search for. */
+	    WIN32_FIND_DATAW find_data;	/* Data found by FindFirstFile() or FindNext(). */
+
+            BOOL look_for_sep = TRUE;
+
+	    envpath = (wchar_t *) emalloc(sz * sizeof(wchar_t*));
+	    GetEnvironmentVariableW(L"PATH", envpath, sz);
+	    beg = envpath;
+
+            while (look_for_sep) {
+                end = wcsstr(beg, LPATHSEPSTR);
+                if (end != NULL) {
+                    sz = end - beg;
+                } else {
+                    sz = wcslen(beg);
+                    look_for_sep = FALSE;
+                }
+                if (sz >= PMAX) {
+                    beg = end + 1;
+                    continue;
+                }
+                wcsncpy(dir, beg, sz);
+                dir[sz] = L'\0';
+                beg = end + 1;
+
+		swprintf(wildcard, PMAX, L"%s" LDIRSEPSTR L"%s",
+			      dir, relpath /* basename */);
+		dir_handle = FindFirstFileW(wildcard, &find_data);
+		if (dir_handle == INVALID_HANDLE_VALUE) {
+		    /* Try next directory in path */
+		    continue;
+		} else {
+		    /* Wow we found the executable. */
+		    wcscpy(relpath, wildcard);
+		    FindClose(dir_handle);
+		    look_for_sep = FALSE;
+		    break;
+		}
+            }
+	    efree(envpath);
+        }
+    }
+    
+    {
+	DWORD size;
+	wchar_t *absrest;
+	size = GetFullPathNameW(relpath, PMAX, abspath, &absrest);
+	if ((size == 0) || (size > PMAX)) {
+	    /* Cannot determine absolute path to escript. Try the origin.  */
+	    return strsave(origpath);
+	} else {
+	    char utf8abs[PMAX];
+	    WideCharToMultiByte(CP_UTF8, 0, abspath, -1, utf8abs, PMAX, NULL, NULL);
+	    return strsave(utf8abs);
+	}
+    }
+}
+#else
 static char *
 find_prog(char *origpath)
 {
@@ -168,14 +262,8 @@ find_prog(char *origpath)
             char *end;
             int sz;
 
-#ifdef __WIN32__
-	    HANDLE dir_handle;	        /* Handle to directory. */
-	    char wildcard[PMAX];	/* Wildcard to search for. */
-	    WIN32_FIND_DATA find_data;	/* Data found by FindFirstFile() or FindNext(). */
-#else
             DIR *dp;             /* Pointer to directory structure. */
             struct dirent* dirp; /* Pointer to directory entry.     */
-#endif /* __WIN32__ */
 
             BOOL look_for_sep = TRUE;
 
@@ -195,21 +283,6 @@ find_prog(char *origpath)
                 dir[sz] = '\0';
                 beg = end + 1;
 
-#ifdef __WIN32__
-		erts_snprintf(wildcard, sizeof(wildcard), "%s" DIRSEPSTR "%s",
-            dir, relpath /* basename */);
-		dir_handle = FindFirstFile(wildcard, &find_data);
-		if (dir_handle == INVALID_HANDLE_VALUE) {
-		    /* Try next directory in path */
-		    continue;
-		} else {
-		    /* Wow we found the executable. */
-		    strcpy(relpath, wildcard);
-		    FindClose(dir_handle);
-		    look_for_sep = FALSE;
-		    break;
-		}
-#else
                 dp = opendir(dir);
                 if (dp != NULL) {
                     while (TRUE) {
@@ -230,21 +303,12 @@ find_prog(char *origpath)
                         }
                     }
                 }
-#endif /* __WIN32__ */
             }
         }
     }
     
     {
-#ifdef __WIN32__
-	DWORD size;
-	char *absrest;
-	size = GetFullPathName(relpath, PMAX, abspath, &absrest);
-	if ((size == 0) || (size > PMAX)) {
-	
-#else
         if (!realpath(relpath, abspath)) {
-#endif /* __WIN32__ */
 	    /* Cannot determine absolute path to escript. Try the origin.  */
 	    return strsave(origpath);
 	} else {
@@ -252,12 +316,21 @@ find_prog(char *origpath)
 	}
     }
 }
+#endif
 
 static void
 append_shebang_args(char* scriptname)
 {
     /* Open script file */
-    FILE* fd = fopen (scriptname,"r");
+    FILE* fd; 
+#ifdef __WIN32__
+    wchar_t wcscriptname[PMAX];
+
+    MultiByteToWideChar(CP_UTF8, 0, scriptname, -1, wcscriptname, PMAX);
+    fd = _wfopen(wcscriptname, L"r");
+#else
+    fd = fopen (scriptname,"r");
+#endif
 
     if (fd != NULL)	{
 	/* Read first line in script file */
@@ -321,9 +394,15 @@ append_shebang_args(char* scriptname)
     }
 }
 
+#ifdef __WIN32__
+int wmain(int argc, wchar_t **wcargv)
+{
+    char** argv;
+#else
 int
 main(int argc, char** argv)
 {
+#endif
     int eargv_size;
     int eargc_base;		/* How many arguments in the base of eargv. */
     char* emulator;
@@ -333,6 +412,19 @@ main(int argc, char** argv)
     char scriptname[PMAX];
     char** last_opt;
     char** first_opt;
+    
+#ifdef __WIN32__
+    int i;
+    int len;
+    /* Convert argv to utf8 */
+    argv = malloc((argc+1) * sizeof(char*));
+    for (i=0; i<argc; i++) {
+	len = WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, NULL, 0, NULL, NULL);
+	argv[i] = malloc(len*sizeof(char));
+	WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, argv[i], len, NULL, NULL);
+    }
+    argv[argc] = NULL;
+#endif
 
     emulator = env = get_env("ESCRIPT_EMULATOR");
     if (emulator == NULL) {
@@ -412,9 +504,8 @@ main(int argc, char** argv)
 #endif
 
 	erts_snprintf(scriptname, sizeof(scriptname), "%s.escript",
-        absname);
+		      absname);
 	efree(absname);
-
     }
 
     /*
@@ -483,63 +574,65 @@ push_words(char* src)
 	PUSH(strsave(sbuf));
 }
 #ifdef __WIN32__
-char *make_commandline(char **argv)
+wchar_t *make_commandline(char **argv)
 {
-    static char *buff = NULL;
+    static wchar_t *buff = NULL;
     static int siz = 0;
-    int num = 0;
-    char **arg, *p;
+    int num = 0, len;
+    char **arg;
+    wchar_t *p;
 
     if (*argv == NULL) { 
-	return "";
+	return L"";
     }
     for (arg = argv; *arg != NULL; ++arg) {
 	num += strlen(*arg)+1;
     }
     if (!siz) {
 	siz = num;
-	buff = emalloc(siz*sizeof(char));
+	buff = (wchar_t *) emalloc(siz*sizeof(wchar_t));
     } else if (siz < num) {
 	siz = num;
-	buff = realloc(buff,siz*sizeof(char));
+	buff = (wchar_t *) realloc(buff,siz*sizeof(wchar_t));
     }
     p = buff;
+    num=0;
     for (arg = argv; *arg != NULL; ++arg) {
-	strcpy(p,*arg);
-	p+=strlen(*arg);
-	*p++=' ';
+	len = MultiByteToWideChar(CP_UTF8, 0, *arg, -1, p, siz);
+	p+=(len-1);
+	*p++=L' ';
     }
-    *(--p) = '\0';
+    *(--p) = L'\0';
 
     if (debug) {
-	printf("Processed command line:%s\n",buff);
+	printf("Processed command line:%S\n",buff);
     }
     return buff;
 }
 
 int my_spawnvp(char **argv)
 {
-    STARTUPINFO siStartInfo;
+    STARTUPINFOW siStartInfo;
     PROCESS_INFORMATION piProcInfo;
     DWORD ec;
 
-    memset(&siStartInfo,0,sizeof(STARTUPINFO));
-    siStartInfo.cb = sizeof(STARTUPINFO); 
+    memset(&siStartInfo,0,sizeof(STARTUPINFOW));
+    siStartInfo.cb = sizeof(STARTUPINFOW); 
     siStartInfo.dwFlags = STARTF_USESTDHANDLES;
     siStartInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
     siStartInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
     siStartInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
 
-    if (!CreateProcess(NULL, 
-		       make_commandline(argv),
-		       NULL, 
-		       NULL, 
-		       TRUE, 
-		       0,
-		       NULL, 
-		       NULL, 
-		       &siStartInfo, 
-		       &piProcInfo)) {
+    if (!CreateProcessW(NULL, 
+			make_commandline(argv),
+			NULL, 
+			NULL, 
+			TRUE, 
+			0,
+			NULL, 
+			NULL, 
+			&siStartInfo, 
+			&piProcInfo)) {
 	return -1;
     }
     CloseHandle(piProcInfo.hThread);
@@ -623,6 +716,18 @@ strsave(char* string)
     return p;
 }
 
+static int 
+file_exists(char *progname) 
+{
+#ifdef __WIN32__
+    wchar_t wcsbuf[MAXPATHLEN];
+    MultiByteToWideChar(CP_UTF8, 0, progname, -1, wcsbuf, MAXPATHLEN);
+    return (_waccess(wcsbuf, 0) != -1);
+#else
+    return (access(progname, 1) != -1);
+#endif
+}
+
 static char*
 get_default_emulator(char* progname)
 {
@@ -636,15 +741,11 @@ get_default_emulator(char* progname)
     for (s = sbuf+strlen(sbuf); s >= sbuf; s--) {
 	if (IS_DIRSEP(*s)) {
 	    strcpy(s+1, ERL_NAME);
-#ifdef __WIN32__
-	    if (_access(sbuf, 0) != -1) {
+	    if(file_exists(sbuf))
 		return strsave(sbuf);
-	    }
-#else
-	    if (access(sbuf, 1) != -1) {
+	    strcpy(s+1, "bin" DIRSEPSTR ERL_NAME);
+	    if(file_exists(sbuf))
 		return strsave(sbuf);
-	    }
-#endif
 	    break;
 	}
     }
diff --git a/erts/etc/common/heart.c b/erts/etc/common/heart.c
index 81d797dc7e..2830641802 100644
--- a/erts/etc/common/heart.c
+++ b/erts/etc/common/heart.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 1996-2012. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2013. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -201,7 +201,6 @@ static BOOL do_shutdown(int);
 static void print_last_error(void);
 static HANDLE start_reader_thread(void);
 static DWORD WINAPI reader(LPVOID);
-static int test_win95(void);
 #define read _read
 #define write _write
 #endif
@@ -239,24 +238,39 @@ get_env(char *key)
 {
 #ifdef __WIN32__
     DWORD size = 32;
-    char *value = NULL;
+    char  *value=NULL;
+    wchar_t *wcvalue = NULL;
+    wchar_t wckey[256];
+    int len; 
+
+    MultiByteToWideChar(CP_UTF8, 0, key, -1, wckey, 256);
+    
     while (1) {
 	DWORD nsz;
-	if (value)
-	    free(value);
-	value = malloc(size);
-	if (!value) {
+	if (wcvalue)
+	    free(wcvalue);
+	wcvalue = malloc(size*sizeof(wchar_t));
+	if (!wcvalue) {
 	    print_error("Failed to allocate memory. Terminating...");
 	    exit(1);
 	}
 	SetLastError(0);
-	nsz = GetEnvironmentVariable((LPCTSTR) key, (LPTSTR) value, size);
+	nsz = GetEnvironmentVariableW(wckey, wcvalue, size);
 	if (nsz == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
-	    free(value);
+	    free(wcvalue);
 	    return NULL;
 	}
-	if (nsz <= size)
+	if (nsz <= size) {
+	    len = WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, NULL, 0, NULL, NULL);
+	    value = malloc(len*sizeof(char));
+	    if (!value) {
+		print_error("Failed to allocate memory. Terminating...");
+		exit(1);
+	    }
+	    WideCharToMultiByte(CP_UTF8, 0, wcvalue, -1, value, len, NULL, NULL);
+	    free(wcvalue);
 	    return value;
+	}
 	size = nsz;
     }
 #else
@@ -564,13 +578,22 @@ void win_system(char *command)
     char *comspec;
     char * cmdbuff;
     char * extra = " /C ";
+    wchar_t *wccmdbuff;
     char *env;
-    STARTUPINFO start;
+    STARTUPINFOW start;
     SECURITY_ATTRIBUTES attr;
     PROCESS_INFORMATION info;
+    int len;
 
-    if (!debug_on || test_win95()) {
-	system(command);
+    if (!debug_on) {
+	len = MultiByteToWideChar(CP_UTF8, 0, command, -1, NULL, 0);
+	wccmdbuff = malloc(len*sizeof(wchar_t));
+	if (!wccmdbuff) {
+	    print_error("Failed to allocate memory. Terminating...");
+	    exit(1);
+	}
+	MultiByteToWideChar(CP_UTF8, 0, command, -1, wccmdbuff, len);
+	_wsystem(wccmdbuff);
 	return;
     }
     comspec = env = get_env("COMSPEC");
@@ -602,20 +625,29 @@ void win_system(char *command)
 
     fflush(stderr);
 
-    if (!CreateProcess(NULL,
-		       cmdbuff,
-		       &attr,
-		       NULL,
-		       TRUE,
-		       0,
-		       NULL,
-		       NULL,
-		       &start,
-		       &info)) {
+    len = MultiByteToWideChar(CP_UTF8, 0, cmdbuff, -1, NULL, 0);
+    wccmdbuff = malloc(len*sizeof(wchar_t));
+    if (!wccmdbuff) {
+	print_error("Failed to allocate memory. Terminating...");
+	exit(1);
+    }
+    MultiByteToWideChar(CP_UTF8, 0, cmdbuff, -1, wccmdbuff, len);
+
+    if (!CreateProcessW(NULL,
+			wccmdbuff,
+			&attr,
+			NULL,
+			TRUE,
+			0,
+			NULL,
+			NULL,
+			&start,
+			&info)) {
 	debugf("Could not create process for the command %s.\r\n", cmdbuff);
     }
     WaitForSingleObject(info.hProcess,INFINITE);
     free(cmdbuff);
+    free(wccmdbuff);
 }
 #endif /* defined(__WIN32__) */
 
@@ -966,16 +998,6 @@ void print_last_error() {
 	LocalFree( lpMsgBuf );
 }
 
-static int test_win95(void)
-{
-    OSVERSIONINFO osinfo;
-    osinfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
-    GetVersionEx(&osinfo);
-    if (osinfo.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) 
-	return 1;
-    else
-	return 0;
-}
 
 static BOOL enable_privilege() {
 	HANDLE ProcessHandle;
@@ -993,27 +1015,18 @@ static BOOL enable_privilege() {
 }
 
 static BOOL do_shutdown(int really_shutdown) {
-    if (test_win95()) {
-    	if (ExitWindowsEx(EWX_REBOOT,0)) {
-		return TRUE;
-	} else {
-		print_last_error();
-		return FALSE;
-	}
-    } else {
-	enable_privilege();
-	if (really_shutdown) {
-	    if (InitiateSystemShutdown(NULL,"shutdown by HEART",10,TRUE,TRUE))
-		return TRUE;
-	} else if (InitiateSystemShutdown(NULL,
-					  "shutdown by HEART\n"
-					  "will be interrupted",
-					  30,TRUE,TRUE)) {
-	    AbortSystemShutdown(NULL);
+    enable_privilege();
+    if (really_shutdown) {
+	if (InitiateSystemShutdown(NULL,"shutdown by HEART",10,TRUE,TRUE))
 	    return TRUE;
-	}
-	return FALSE;
+    } else if (InitiateSystemShutdown(NULL,
+				      "shutdown by HEART\n"
+				      "will be interrupted",
+				      30,TRUE,TRUE)) {
+	AbortSystemShutdown(NULL);
+	return TRUE;
     }
+    return FALSE;
 }
 
 DWORD WINAPI reader(LPVOID lpvParam) {
diff --git a/erts/etc/common/typer.c b/erts/etc/common/typer.c
index c95959d52d..b45867f845 100644
--- a/erts/etc/common/typer.c
+++ b/erts/etc/common/typer.c
@@ -99,14 +99,33 @@ char *strerror(int errnum)
 }
 #endif /* !HAVE_STRERROR */
 
+#ifdef __WIN32__
+int wmain(int argc, wchar_t **wcargv)
+{
+    char** argv;
+#else
 int
 main(int argc, char** argv)
 {
+#endif
     int eargv_size;
     int eargc_base;		/* How many arguments in the base of eargv. */
     char* emulator;
     int need_shell = 0;
 
+#ifdef __WIN32__
+    int i;
+    int len;
+    /* Convert argv to utf8 */
+    argv = malloc((argc+1) * sizeof(char*));
+    for (i=0; i<argc; i++) {
+	len = WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, NULL, 0, NULL, NULL);
+	argv[i] = malloc(len*sizeof(char));
+	WideCharToMultiByte(CP_UTF8, 0, wcargv[i], -1, argv[i], len, NULL, NULL);
+    }
+    argv[argc] = NULL;
+#endif
+
     emulator = get_default_emulator(argv[0]);
 
     /*
@@ -193,66 +212,65 @@ push_words(char* src)
 	PUSH(strsave(sbuf));
 }
 #ifdef __WIN32__
-char *make_commandline(char **argv)
+wchar_t *make_commandline(char **argv)
 {
-    static char *buff = NULL;
+    static wchar_t *buff = NULL;
     static int siz = 0;
-    int num = 0;
-    char **arg, *p;
+    int num = 0, len;
+    char **arg;
+    wchar_t *p;
 
     if (*argv == NULL) { 
-	return "";
+	return L"";
     }
     for (arg = argv; *arg != NULL; ++arg) {
 	num += strlen(*arg)+1;
     }
     if (!siz) {
 	siz = num;
-	buff = malloc(siz*sizeof(char));
+	buff = (wchar_t *) emalloc(siz*sizeof(wchar_t));
     } else if (siz < num) {
 	siz = num;
-	buff = realloc(buff,siz*sizeof(char));
+	buff = (wchar_t *) realloc(buff,siz*sizeof(wchar_t));
     }
     p = buff;
+    num=0;
     for (arg = argv; *arg != NULL; ++arg) {
-	strcpy(p,*arg);
-	p+=strlen(*arg);
-	*p++=' ';
+	len = MultiByteToWideChar(CP_UTF8, 0, *arg, -1, p, siz);
+	p+=(len-1);
+	*p++=L' ';
     }
-    *(--p) = '\0';
+    *(--p) = L'\0';
 
     if (debug) {
-	printf("Processed commandline:%s\n",buff);
+	printf("Processed command line:%S\n",buff);
     }
     return buff;
 }
 
 int my_spawnvp(char **argv)
 {
-    STARTUPINFO siStartInfo;
+    STARTUPINFOW siStartInfo;
     PROCESS_INFORMATION piProcInfo;
     DWORD ec;
 
-    memset(&siStartInfo,0,sizeof(STARTUPINFO));
-    siStartInfo.cb = sizeof(STARTUPINFO); 
+    memset(&siStartInfo,0,sizeof(STARTUPINFOW));
+    siStartInfo.cb = sizeof(STARTUPINFOW); 
     siStartInfo.dwFlags = STARTF_USESTDHANDLES;
     siStartInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
     siStartInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
     siStartInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
-    siStartInfo.wShowWindow = SW_HIDE;
-    siStartInfo.dwFlags |= STARTF_USESHOWWINDOW;
-
-
-    if (!CreateProcess(NULL, 
-		       make_commandline(argv),
-		       NULL, 
-		       NULL, 
-		       TRUE, 
-		       0,
-		       NULL, 
-		       NULL, 
-		       &siStartInfo, 
-		       &piProcInfo)) {
+
+    if (!CreateProcessW(NULL, 
+			make_commandline(argv),
+			NULL, 
+			NULL, 
+			TRUE, 
+			0,
+			NULL, 
+			NULL, 
+			&siStartInfo, 
+			&piProcInfo)) {
 	return -1;
     }
     CloseHandle(piProcInfo.hThread);
@@ -330,6 +348,18 @@ strsave(char* string)
     return p;
 }
 
+static int 
+file_exists(char *progname) 
+{
+#ifdef __WIN32__
+    wchar_t wcsbuf[MAXPATHLEN];
+    MultiByteToWideChar(CP_UTF8, 0, progname, -1, wcsbuf, MAXPATHLEN);
+    return (_waccess(wcsbuf, 0) != -1);
+#else
+    return (access(progname, 1) != -1);
+#endif
+}
+
 static char*
 get_default_emulator(char* progname)
 {
@@ -343,15 +373,8 @@ get_default_emulator(char* progname)
     for (s = sbuf+strlen(sbuf); s >= sbuf; s--) {
 	if (IS_DIRSEP(*s)) {
 	    strcpy(s+1, ERL_NAME);
-#ifdef __WIN32__
-	    if (_access(sbuf, 0) != -1) {
-		return strsave(sbuf);
-	    }
-#else
-	    if (access(sbuf, 1) != -1) {
+	    if(file_exists(sbuf))
 		return strsave(sbuf);
-	    }
-#endif
 	    break;
 	}
     }