Sounds as if, you may have extracted the CAB file onto the Q, with WinRAR? If so, you can't extract the CAB files from your PC with WinRAR, onto you Q.
You need to COPY the CAB file onto the Q with ActiveSync > Explorer, open the CAB file from File Manager on the Q. The CAB file on your Q, is just like opening a SETUP.EXE on your PC.