I didn't want to create another topic but I think I found an inconsistency in the nsis script. The 'symsrv.yes' file is copied by the 'update.bat' from 'exchndl\win32\bin\' to the 'devel' folder but not to the 'output' folder. Yet the nsis script looks for that file in a path which probably refers to the 'output' folder. Maybe update the 'update.bat' to copy that file also to the 'output' folder so the nsis script works? Or am I missing something?