As more and more people starts playing with CTPs and betas version of various software packages provided in VPC and knowing that those VPC often expires before we really want them to expire, there is a trick to extend their life. Are you aware the VS 2010 CTP expires early January?
This trick is very well explained by Ben “Virtual PC Guy” Armstrong on his blog (http://blogs.msdn.com/virtual_pc_guy/archive/2007/11/28/disabling-time-synchronization-under-virtual-pc-2007.aspx
The very same technique is used on Jeff Beehler’s blog (http://blogs.msdn.com/jeffbe/archive/2008/12/09/dealing-with-the-team-system-2010-ctp-expiration.aspx).