Control Alt Delete

I believe that you need to use CTRL-ALT-Fn-Delete to get the functionality you want. The "Delete" key by itself acts as a "backspace" key in the Windows world. I believe if you use the "fn" key with the "delete" key it gives you the "Delete" function in Windows.

I don't do windoze, but this should get you pointed in the right direction: http://support.apple.com/kb/HT1343

This can depend on whether you're going to boot the entire Mac into Windows using Boot Camp, or run Windows alongside your other Mac apps inside virtualization software.

I use Parallels Desktop virtualization software. In that, you have a few choices. You can choose a menu command in Parallels that will send Ctrl AltDelete, or I believe you can also remap the keys in Parallels preferences.

While I don't use Boot Camp, my guess is that in there you will simply need to press the Mac keyboard equivalent, which would be Command Option Delete or possibly Control Option Delete since Mac keyboard have both Command and Control keys. On the Mac, the Option key definitely maps to the Alt key in Windows, and an extended Mac keyboard would definitely have a real Delete key on it.

I'm not sure the document link in the previous post will help you since it doesn't cover any Windows equivalent shortcuts.

Sorry, thought there was something posted there that referred to windoze. Try http://support.apple.com/kb/HT1167 and other boot camp support docs.