After installing a 1.1x version the 0.8 version does not work anymore

Some time ago I  upgraded, to try it, to a pdfcreator 1.1x version.

Well, now I need to reinstall a 0.8 version I need for compatibility with other software. PDFcreator installs ok but does not work...

I see that the printing cue receives the printing job but then nothing happens, the job remains in the cue 'till a pc restart.

Please help

Alessandro Fogar