Anton,
I got it to work. I have all sources in VSS and this makes the files read-only. For the application that was giving me a hardtime I removed all read-only flags for all related files and it was able to build the exe again.

The VPE_OBJECTCLICKED is indeed related to a .h file from the supplier. The problem has been solved in the .h file of a newer version but I have not made any changes in the old one. If it ain't broke, don't fix it is the reason for me not to touch it. The error comes by everytime the executable is built but I have no problems with it.

Thanks for you help.

Regards,
Ron

>>Compiling d:\sds\shared\progs\sbm_sbmvpe.prg
>>#define VPE_OBJECTCLICKED 3338
>>Error in line 458: Constant is already created with #DEFINE.
>
>Find and remove duplicate definition.
>It may be in some .h file.
>Or rename the constant if it conflicts with other constant.
>
>>Program d:\sds\custtrack\progs\trk_printlang.prg has the following errors:
>> Unknown PAONZIN - Undefined
>>
>>Program d:\sds\custtrack\progs\trk_impactanalysis.prg has the following errors:
>> Unknown PAONZIN - Undefined
>
>Use EXTERNAL ARRAY at the beginning of functions or methods which recieve arrays as parameters.
>This error is not critical, just stupid compiler warning although useful sometimes)))