Try :

copy file fred.txt to c:\temp\fred.txx
rename c:\temp\fred.txx to c:\temp\fred.txt

(I've done something like this in FPD26)

>I don't think copy file will work from an .EXE
>Say I have fred.txt included in a project then built into an .EXE, I can't say copy file fred.txt to c:\temp\fred.txt