>>It seems, you did not compile your new program and/or the old .frx is used.
>
>I recompiled it already zillion (?) times and did Search on the drive. I deleted .bak and .fxp files to be sure. Still it uses something else.
>
>How can I find out, which program does it use?
>
>TIA.

I take it that it is using the wrong one then (not the one you think it is).

Did you check for any procedure files you may have set? It may be in one of those. If it is, you should be able scroll the source window in the debugger and see other code that may help you to recognize it.