Make behavior of builtin executables closer to that of builtin dlls.
Fixed case sensitivity of builtin executables.

diff --git a/loader/loadorder.c b/loader/loadorder.c
index a08a134..2f1107a 100644
--- a/loader/loadorder.c
+++ b/loader/loadorder.c
@@ -418,6 +418,62 @@
 
 
 /***************************************************************************
+ *	MODULE_GetBuiltinPath
+ *
+ * Get the path of a builtin module when the native file does not exist.
+ */
+BOOL MODULE_GetBuiltinPath( const char *libname, const char *ext, char *filename, UINT size )
+{
+    char *p;
+    BOOL ret = FALSE;
+    UINT len = GetSystemDirectoryA( filename, size );
+
+    if (FILE_contains_path( libname ))
+    {
+        char *tmp;
+
+        /* if the library name contains a path and can not be found,
+         * return an error.
+         * exception: if the path is the system directory, proceed,
+         * so that modules which are not PE modules can be loaded.
+         * If the library name does not contain a path and can not
+         * be found, assume the system directory is meant */
+
+        if (strlen(libname) >= size) return FALSE;  /* too long */
+        if (strchr( libname, '/' ))  /* need to convert slashes */
+        {
+            if (!(tmp = HeapAlloc( GetProcessHeap(), 0, strlen(libname)+1 ))) return FALSE;
+            strcpy( tmp, libname );
+            for (p = tmp; *p; p++) if (*p == '/') *p = '\\';
+        }
+        else tmp = (char *)libname;
+
+        if (!FILE_strncasecmp( filename, tmp, len ) && tmp[len] == '\\')
+        {
+            strcpy( filename, tmp );
+            ret = TRUE;
+        }
+        if (tmp != libname) HeapFree( GetProcessHeap(), 0, tmp );
+        if (!ret) return FALSE;
+    }
+    else
+    {
+        if (strlen(libname) >= size - len - 1) return FALSE;
+        filename[len] = '\\';
+        strcpy( filename+len+1, libname );
+    }
+
+    /* if the filename doesn't have an extension, append the default */
+    if (!(p = strrchr( filename, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
+    {
+        if (strlen(filename) + strlen(ext) >= size) return FALSE;
+        strcat( filename, ext );
+    }
+    return TRUE;
+}
+
+
+/***************************************************************************
  *	MODULE_GetLoadOrder	(internal)
  *
  * Locate the loadorder of a module.
diff --git a/loader/module.c b/loader/module.c
index 19a7a8e..637c693 100644
--- a/loader/module.c
+++ b/loader/module.c
@@ -1194,7 +1194,7 @@
 	WINE_MODREF *pwm;
 	int i;
 	enum loadorder_type loadorder[LOADORDER_NTYPES];
-	LPSTR filename, p;
+	LPSTR filename;
         const char *filetype = "";
         DWORD found;
         BOOL allocated_libdir = FALSE;
@@ -1222,28 +1222,7 @@
 	/* build the modules filename */
         if (!found)
 	{
-	    if ( ! GetSystemDirectoryA ( filename, MAX_PATH ) )
-  	        goto error;
-
-	    /* if the library name contains a path and can not be found,
-	     * return an error.
-	     * exception: if the path is the system directory, proceed,
-	     * so that modules which are not PE modules can be loaded.
-	     * If the library name does not contain a path and can not
-	     * be found, assume the system directory is meant */
-
-	    if ( ! FILE_strncasecmp ( filename, libname, strlen ( filename ) ))
-	        strcpy ( filename, libname );
-	    else
-	    {
-                if (FILE_contains_path(libname)) goto error;
-                strcat ( filename, "\\" );
-                strcat ( filename, libname );
-	    }
-
-	    /* if the filename doesn't have an extension, append .DLL */
-	    if (!(p = strrchr( filename, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
-	        strcat( filename, ".dll" );
+            if (!MODULE_GetBuiltinPath( libname, ".dll", filename, MAX_PATH )) goto error;
 	}
 
 	/* Check for already loaded module */