Hi BrowserUK,
Many thanks for the info. I'm googling on it now.
Yesterday I fumbled with the number of whitespaces behind the xml (reducing the whitespaces for the number of chars added).
The mt.exe does all the math for c++ files however for the pdk compiler mt.exe doesn't seem to be fully compliant.
Now in parallel on a colleague's hunch I'm busy applying the "mt.exe -manifest ExeName.exe.manifest -outputresource:ExeName.exe" line to all perl and pdk executables and dlls.
The idea is that possibly some of these pe's are compiled into the perlapp.exe. However I don't put much faith in this idea.
I'll keep you posted.
Many thanks so far for the great pe info!
With kind regards.
DDN