Installshield error 1201: Setup needs 0 KB free disk space (with workaround)

I get this on http://apps.facebook.com/vivatybeta/?... while installing the ActiveX control:



I have 2.1GB free disk space on C:
I'm using IE7.0.5730.11 on Win XP

There is something about miscalculation of req space here:
http://community.installshield.com/sh...

Workaround that worked for me is to clean up the C: drive so it has more than 4GB of free space.

Seems that you vivaty guys need to update your installshield setup.exe (see article).