First time poster. I'm having some big problems after having to reinstall asp.net on my exchange 2007 server (running on server 2003 x64). The reason I reinstalled was I had installed asp.net 3.5 sp1, and it broke a few things. A few others experienced the same problem: http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=363175 I took a risk, and it didn't pay off, i uninstalled all asp.net, and reinstalled 3.5 (non-sp1). I'm now experiencing a bunch of problems: 1. This seems to have made a lot of IIS settings go a bit out of wack. OWA doesn't work, I get the login screen but then "This virtual directory does not allow contents to be listed". In a quick look at IIS my guess is that the ''default content page' should include default.aspx, but it does not. Is that the problem? Why would this disappear? 2. Autodiscover does not seem to work any more. 3. I can't seem to get free/busy info in outlook 2007. Please assist. Thanks.

Dan,Let's start at the beginning. Are you seeing that the default web site is running? is WWW service still running? What event log errors are showing up?I don't have a way to install 3.5 right now until later on, otherwise i can try to re-produce your upgrade scenario.

Hi, Please check which version of .NET Framework you have installed. You can use tools likehttp://web-sniffer.net/ Please pay attention to whether it is a 64-bit version. If it is the correct version, then please open IIS manager-default website - Properties- Home Directory Tab Configuration - Wildcard Application MapsAdd the location path of the aspnet_isapi.dll C:\windows\microsoft.net\framework\v2.0.50727\aspnet_isaspi.dll After that please run IISreset /noforce to restart IIS. Also, Id like to recommend you to create a new website and check whether IIS can run normally. Create a Web Site (IIS 6.0) http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/9b74f316-071b-4eab-b5d2-c3ad7feb46ca.mspx?mfr=true If that does not help, then please try to check application log to see whether any error event has been logged there. You may post the detail error event information here for further troubleshooting. More information share with you: Configure an ASP.NET Application for ASP.NET (IIS 6.0) http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/9b74f316-071b-4eab-b5d2-c3ad7feb46ca.mspx?mfr=true Hope it helps. Xiu