>It appears that BOTH program (at this time) have NO caption in the code until AFTER the FIRSTINSTANCE code is execute.
>
>So... hmmmm... FIRSTINSTANCE thinks both programs are the same, then, eh??
>
>And the older code MUST have set the Caption ahead of the FIRSTINSTANCE calling.....

The Caption could be set in the config.fpw with

TITLE=<Application title>

Alternatively, you can use EXE name instead

CHRTRAN(_VFP.ServerName, "\ ", "/_")