WPF XBAP apps and UAC

Here’s an interesting thing I learned the other day, which wasn’t obvious to me. If you have an XBAP WPF application that tries to access files at the location identified by CSIDL_COMMON_APPDATA (Environment.SpecialFolders.CommonApplicationData in .Net 2.0/3.0) they need to be marked with Read/Write permissions for “Everyone”. Otherwise File Virtualization kicks in and Vista creates copies of the

IE 7 is back on my machine

With some help from Peter Gurevich, one of the IE 7 Performance PMs, I tracked down what caused IE 7 to basically lock up on my machine. Turns out it were the IE Developer Toolbar and IE DOM Explorer add-ons that were to blame. I disabled all but these two add-ons and saw no lockups any more.

So much for IE 7

I installed the offical IE 7 release a few minutes ago, ran it, and it immediately started consuming 50% CPU time. The part of the UI where the Tabs get rendered (and the address bar / stop / refresh / search) was frozen and I couldn’t get the Favorites area to pop up. Not good. Looks like I’m