Computer Help and Support

MWB may not supply this by default; I seem to remember they don't, but you can double-check their Web page or email them.

Usually it's an "MD5" or SHAsum.

You will need to run a checksum program to find the checksum of your file after the d/l. The sender (or Web page) should supply an authentic checksum. If the two don't match, the data is corrupted.

BTW, I don't see why you can't reinstall, as long as you saved your registration code. Just download the installer for the free version and run it. First time you run MWB, it should ask if you want to upgrade to the full version. Just click Yes and provide your reg'n code. If it doesn't ask, look through the menus -- there's always a way to upgrade to the $$$ version within the free/trial version.