>My Windows XP Pro is scratch. So, we cannot install and use it. However, in my package, I also have Windows XP Pro Checked/Debug. We received that CD in July 2003 as well. If we install using that one, will that do? Basically, what difference is there between both CDs?

Hi Michel,

See Re: MSDN.... difference in builds Message #807338. The bottom line, you shouldn't use Checked/Debug build for regular use system.