Thanks for the prompt reply, however, those commands don't work on my system.

I am using the QT terminal window so I hope the paths are correct. I haven't changed anything there. I also have to use the mingw32-make command as nmake is not recognised. When I try to build my release I get the following message...

cannot find -lQtGui <--- PROBLEM !!
collect2: ld returned 1 exit status
mingw32-make[1]: *** [release\dump4.exe] Error 1
mingw32-make[1]: Leaving directory `c:/Progs-1/dump4'
mingw32-make: *** [release] Error 2

Despite not being able to use nmake, I wouldn't have expected this error. Am I missing something in the configuration?

Thanks,

Ade