Our Kaspersky AV for WinGate module keeps its config in HKEY_LOCAL_MACHINE\Software\KasperskyLab\sdk There are a bunch of registry keys (managed by the Kaspersky AV SDK, rather than our code) that live in I'm wondering if Kaspersky was installed to a non-default location, and whether there's something in the registry hanging around from the previous install relating to a different location to where it's installed now. Sorry you didn't get a response to your last post.