Well, if the app had virtualization applied to regkeys/files that it laid
down, disabling UAC would be like losing those registry keys/files (I
think). That virtualization is essentially a feature to allow apps that
aren't written for UAC run under UAC and it's disabled if the app marks
itself as being able to handle the truth

. So if you have an app that
isn't written for UAC, it could exhibit these symptoms.
HTH,
--
James Finnigan [MSFT] (
http://blogs.msdn.com/jamesfi )
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Scott said:
I just disable UAC and note that some installed programs and ran smoothly
require reinstallation. Can someone advise if it is normal or there is
another configuration needed.
Thanks,
Scott