Windows Certified compatibility needs to be looked at in several ways: 1) The ISV WANTS Microsoft to sign off not just on the application, but it's install and uninstall processes and the way it uses the PC 2) The ISV is happy to pay Microsoft for the logo 3) The ISV believes that having the logo is important Many of the ISVs I work with do not care about #1 at all, so don't even bother to run the tests. Most who run the tests end up passing as the process is iterative and free until you have cleaned up the application. It is worth noting that we have more apps passed for Windows 7 than we had for a long time for Windows XP and most of the apps available for XP still do not carry the logo. Not because they can't, but because users use it without, so why have the expense. Still happy to hear about ISVs that won't support their solution on WIndows 7. David