Well I removed vsta_aide using the Add/Remove and that fixed things. I did the same thing (so I thought) yesterday and it didn't work; SW2011 wouldn't startup.
Still a bit of a mystery but movin' on!
Windows Add/Remove shows that it is installed.
If I allow it to complete it's setup it actually appears to do it again and again several times before the Word doc finally opens.
Just installed SW2011 on a stand-alone XP/SP3 machine.
SW appears to work fine. However, now when I try to open a Word (2003) doc, Word tries to launch vsta_msi .... twice it seems. I can click through and cancel the vsta launch and get the doc to open but what a pain. Has anyone seen this...