Ily said:
Can Visaal Studio 2005 and Visual Studio 2005 co-exist?
The vast majority of reports (including my own experience) indicate yes.
However, 2005 *is* beta software and you should consider segregating it by
setting it up on a separate PC not used for production work, or on its own
partition in a multi-boot environment or by using a product such as Virtual
PC. That way, if something does go wrong, your regular work won't suffer.