Sid-by-side config error

When I try running windows live messenger, I can't even start it. I get this error message.
The application has failed to start because its side-by-side configuration is incorrect. Please see the application event log for more detail.

How do I change the side-by-side configuration of the application so it works correctly?

Specs:
Dell Inspiron 1720
Windows Vista Home Premium (32-bit OS)
Intel Core 2 Duo T7300 2.00GHZ
2 Gigs of RAM
NVidia Geforce 8400M GS
220GB Harddrive