Unless you intentionally and specifically configured WSUS to use =SSL your corporate Root Certificate doesn’t make a squat bit of difference to WSUS or the Windows Update Agent. If you are using SSL, then you simply need to follow the very specific and accurate instructions for implementing SSL with WSUS that are contained in

AES is not supported out of the box for Schannel / SSL on anything earlier than Vista. I’ve found the hotfix that patches this support into Win2k3 and it works fine for me

AES is not supported out of the box for Schannel / SSL on anything earlier than Vista. I’ve found the hotfix that patches this support into Win2k3 and it works fine for me. Is there an equivalent patch for XP?