src/tool_util.c | 33 +++++++++++++--------------------
 1 file changed, 13 insertions(+), 20 deletions(-)

diff --git a/src/tool_util.c b/src/tool_util.c
index e657dacf0..926e43644 100644
--- a/src/tool_util.c
+++ b/src/tool_util.c
@@ -191,28 +191,21 @@ int tool_ftruncate64(int fd, curl_off_t where)
 #endif /* USE_TOOL_FTRUNCATE */
 
 #ifdef _WIN32
-FILE *Curl_execpath(const char *filename, char **pathp)
+FILE *Curl_execpath(const TCHAR *filename, TCHAR **pathp)
 {
-  static char filebuffer[512];
-  unsigned long len;
-  /* Get the filename of our executable. GetModuleFileName is already declared
-   * via inclusions done in setup header file. We assume that we are using
-   * the ASCII version here.
-   */
-  len = GetModuleFileNameA(0, filebuffer, sizeof(filebuffer));
-  if(len > 0 && len < sizeof(filebuffer)) {
-    /* We got a valid filename - get the directory part */
-    char *lastdirchar = strrchr(filebuffer, DIR_CHAR[0]);
+  static const size_t BUFFSIZE = 512;
+  TCHAR filebuffer[BUFFSIZE];
+  unsigned long len = GetModuleFileName(0, filebuffer, BUFFSIZE);
+  if((len > 0) && (len < BUFFSIZE)) {
+    TCHAR *lastdirchar = _tcsrchr(filebuffer, TEXT('\\'));
     if(lastdirchar) {
-      size_t remaining;
-      *lastdirchar = 0;
-      /* If we have enough space, build the RC filename */
-      remaining = sizeof(filebuffer) - strlen(filebuffer);
-      if(strlen(filename) < remaining - 1) {
-        msnprintf(lastdirchar, remaining, "%s%s", DIR_CHAR, filename);
-        *pathp = filebuffer;
-        return fopen(filebuffer, FOPEN_READTEXT);
-      }
+      *lastdirchar = TEXT('\0');
+    }
+    if (_tcslen(filebuffer) + _tcslen(filename) + 2U < BUFFSIZE) {
+      _tcscat(filebuffer, TEXT("\\"));
+      _tcscat(filebuffer, filename);
+      *pathp = filebuffer;
+      return _tfopen(filebuffer, TEXT(FOPEN_READTEXT));
     }
   }
 
 src/tool_util.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tool_util.h b/src/tool_util.h
index 9fec7e873..93d7ef9fc 100644
--- a/src/tool_util.h
+++ b/src/tool_util.h
@@ -40,7 +40,7 @@ int struplocompare(const char *p1, const char *p2);
 int struplocompare4sort(const void *p1, const void *p2);
 
 #ifdef _WIN32
-FILE *Curl_execpath(const char *filename, char **pathp);
+FILE *Curl_execpath(const TCHAR *filename, TCHAR **pathp);
 #endif
 
 #endif /* HEADER_CURL_TOOL_UTIL_H */