diff --git a/rosapps/dflat32/config.c b/rosapps/dflat32/config.c
index 0a92a164ba9..053ab4a523d 100644
--- a/rosapps/dflat32/config.c
+++ b/rosapps/dflat32/config.c
@@ -479,7 +479,7 @@ BOOL DfLoadConfig(void)
 				char path[64];
 				DfBuildFileName(path, ".DfCfg");
 	        	fclose(fp);
-				unlink(path);
+				_unlink(path);
             	strcpy(DfCfg.version, DF_VERSION);
 			}
 			ConfigLoaded = TRUE;
diff --git a/rosapps/dflat32/direct.c b/rosapps/dflat32/direct.c
index afb4b09857d..db3f576b0b8 100644
--- a/rosapps/dflat32/direct.c
+++ b/rosapps/dflat32/direct.c
@@ -78,7 +78,7 @@ void DfCreatePath(char *path,char *fspec,int InclName,int Change)
 
 static int dircmp(const void *c1, const void *c2)
 {
-    return stricmp(*(char **)c1, *(char **)c2);
+    return _stricmp(*(char **)c1, *(char **)c2);
 }
 
 
diff --git a/rosapps/dflat32/edit.c b/rosapps/dflat32/edit.c
index e01c4864285..06586acf754 100644
--- a/rosapps/dflat32/edit.c
+++ b/rosapps/dflat32/edit.c
@@ -241,7 +241,7 @@ static void SelectFile(DFWINDOW wnd)
 		while (wnd1 != NULL)
 		{
 			if (wnd1->extension &&
-				stricmp(FileName, wnd1->extension) == 0)
+				_stricmp(FileName, wnd1->extension) == 0)
 			{
 				DfSendMessage(wnd1, DFM_SETFOCUS, TRUE, 0);
 				DfSendMessage(wnd1, DFM_RESTORE, 0, 0);
@@ -462,7 +462,7 @@ static void EditDeleteFile(DFWINDOW wnd)
                 char msg[30];
                 sprintf(msg, "Delete %s?", fn);
                 if (DfYesNoBox(msg))    {
-                    unlink(wnd->extension);
+                    _unlink(wnd->extension);
                     DfSendMessage(wnd, DFM_CLOSE_WINDOW, 0, 0);
                 }
             }
diff --git a/rosapps/dflat32/helpbox.c b/rosapps/dflat32/helpbox.c
index 01d2f1f710d..b8e38674656 100644
--- a/rosapps/dflat32/helpbox.c
+++ b/rosapps/dflat32/helpbox.c
@@ -536,7 +536,7 @@ BOOL DfDisplayHelp(DFWINDOW wnd, char *Help)
     FindHelp(Help);
     if (ThisHelp != NULL)    {
         if (LastStack == NULL ||
-                stricmp(Help, LastStack->hname))    {
+                _stricmp(Help, LastStack->hname))    {
             /* ---- add the window to the history stack ---- */
             ThisStack = DfCalloc(1,sizeof(struct HelpStack));
             ThisStack->hname = DfMalloc(strlen(Help)+1);