Or simple way: ;) run the attached reg file; note: close viewer before. HTH. Note that the above probably won't work with the portable version (there are no registry entries for a portable 'installation'). But Stefan's previous suggestion (Reset All Settings to Default...) should work just fine (ba...

Can you not simply use the weirding way to open alternate viewers, muad'dib? ;) The W eirding W ay was the first thing I used, but I think I've become a bit careless in my technique, because every time I tried it I would break my computer! Or maybe the W eirding W ay isn't compatible with W indows?

I recently discovered PDF-XChange Viewer and was pleasantly surprised to see that it listed my other viewers on the Launch Toolbar. This actually convinced me to make PDF-XC my default viewer, since I could easily launch the document with another viewer if needed. However, on my second machine, not ...