Where Can I buy a Windows CD which I can dowload on unlimited Computers without its being illegal.?

I think we have to buy a specail "site license" for these kind of CDs but don't where to get it from and How much does it cost..? Please helpppp Thank you...

You can start here: http://www.microsoft.com/licensing/about-licensing/how-volume-licensing-works.aspx

Are you a company building computers for sale or one that uses a lot of PCs?

In either case, you have to purchase a license from Microsoft. You can contact their sales department who will help you with the kind of licensing you need.

Ye Olde Windows 98SE didn't have a limit on how many PC's you could install it on, but it's no longer supported and therefore not secure for online activities. Although I bet there are still a few out there using it.