diff --git a/Source/build.cpp b/Source/build.cpp
index 9c282057..ebb1f018 100644
--- a/Source/build.cpp
+++ b/Source/build.cpp
@@ -475,25 +475,6 @@ definedlist.add("NSIS_SUPPORT_LANG_IN_STRINGS");
   m_ShellConstants.add("CDBURN_AREA", CSIDL_CDBURN_AREA, CSIDL_CDBURN_AREA);
 }
 
-namespace {
-string get_executable_path(const char* argv0) {
-#ifdef _WIN32
-  char temp_buf[1024];
-  temp_buf[0] = '\0';
-  int rc = GetModuleFileName(NULL,temp_buf,1024);
-  assert(rc != 0);
-  return string(temp_buf);
-#else
-  return get_full_path(argv0);
-#endif
-}
-
-string get_executable_dir(const char *argv0) {
-  return get_dir_name(get_executable_path(argv0));
-}
-
-} // end anonymous namespace
-
 void CEXEBuild::setdirs(const char *argv0)
 {
   string nsis_dir = get_executable_dir(argv0);
diff --git a/Source/makenssi.cpp b/Source/makenssi.cpp
index 318e15fb..cd7fce70 100644
--- a/Source/makenssi.cpp
+++ b/Source/makenssi.cpp
@@ -41,11 +41,13 @@ const char *NSIS_VERSION="v2.03";
 #else
 #  include <unistd.h>
 #endif
+#include <string>
 
 #include "build.h"
 #include "util.h"
 #include "exedata.h"
 
+using namespace std;
 
 int g_noconfig=0;
 int g_display_errors=1;
@@ -278,15 +280,8 @@ int main(int argc, char **argv)
       if (!g_noconfig)
       {
         g_noconfig=1;
-        char exepath[1024];
-        strncpy(exepath,argv[0],sizeof(exepath)-1);
-        exepath[1023]=0;
-        char *p=exepath;
-        while (*p) p++;
-        while (p > exepath && *p != PLATFORM_PATH_SEPARATOR_C) p=CharPrev(exepath,p);
-        if (p>exepath) p++;
-        strcpy(p,"nsisconf.nsh");
-        FILE *cfg=fopen(exepath,"rt");
+        string nsisconf=get_executable_dir(argv[0])+PLATFORM_PATH_SEPARATOR_STR+"nsisconf.nsh";
+        FILE *cfg=fopen(nsisconf.c_str(),"rt");
         if (cfg)
         {
           if (build.display_script) 
@@ -294,7 +289,7 @@ int main(int argc, char **argv)
             fprintf(g_output,"Processing config: \n");
             fflush(g_output);
           }
-          int ret=build.process_script(cfg,exepath);
+          int ret=build.process_script(cfg,(char*)nsisconf.c_str());
           fclose(cfg);
           if (ret != PS_OK && ret != PS_EOF)
           {
diff --git a/Source/util.cpp b/Source/util.cpp
index e912a85a..643c9e12 100644
--- a/Source/util.cpp
+++ b/Source/util.cpp
@@ -536,3 +536,19 @@ string get_file_name(const string& path) {
     return path;
   return path.substr(last_separator_pos + 1, string::npos);
 }
+
+string get_executable_path(const char* argv0) {
+#ifdef _WIN32
+  char temp_buf[1024];
+  temp_buf[0] = '\0';
+  int rc = GetModuleFileName(NULL,temp_buf,1024);
+  assert(rc != 0);
+  return string(temp_buf);
+#else
+  return get_full_path(argv0);
+#endif
+}
+
+string get_executable_dir(const char *argv0) {
+  return get_dir_name(get_executable_path(argv0));
+}
diff --git a/Source/util.h b/Source/util.h
index 0fe8464b..d0b513a7 100644
--- a/Source/util.h
+++ b/Source/util.h
@@ -49,6 +49,7 @@ size_t my_strftime(char *s, size_t max, const char  *fmt, const struct tm *tm);
 std::string get_full_path(const std::string &path);
 std::string get_dir_name(const std::string& path);
 std::string get_file_name(const std::string& path);
+std::string get_executable_dir(const char *argv0);
 
 #ifndef _WIN32
 char *CharPrev(const char *s, const char *p);