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As of IE7, you can no longer use the runas command to launch the browser as an administrator and then redirect it to the C: drive to have a temporary Windows Explorer session with elevated privileges.

The alternative is to run the following from the Run Dialog, which in the long run would have been easier to use anyway.  Incidentally, this doesn’t work in Vista, but hopefully UAC will take care of the need.

runas /user:administrator “explorer /e”

I’m a few weeks into my Vista testing and beginning to compile lists of
show-stoppers, annoyances and incompatibilities.

The most significant issue to date seems to be a lock-down on user profiles implemented with Vista. In Windows XP one was able to simply create a local profile, customize it and copy its contents to the Default User folder for use as a default profile. That method no longer appears to work. Neither does deletion of a user profile in order to spur its regeneration. Finally, this problem extends to user profile migration. While Microsoft has offered up tools for that purpose (namely, the User State Migration Tool 3.0) I’m unclear as to whether or not that can be trusted to grab each and every third party software setting.

[addendum]

It appears as if I spoke too soon.  For some reason the default ownership of files in a user’s profile is now SYSTEM.  When changing the ownership to SYSTEM for a manually copied user profile it works as expected.  I’ll have to dig a bit deeper to find out why exactly this has changed.