Hi, i already searched a lot in the internet but i find no solution to my problem. I am running MS Exchange Server 2003 SP2 on a Win 2000 Server machine (all updates/hotfixes installed). Webserver is IIS 6.0. Whenever i try to access Outlook Mobile Access (Directory name: OMA), i get the following error in my event log (and the access does not work): "aspnet_wp.exe (PID: ...) stopped unexpectedly. (Error code ASP.NET 1000)" I am using ASP .NET 1.1.4322 for the directory (all the directories in the web site use this version, however i also have 2.0.50727 installed for other software). There is no other errors visible in the event log, no detailed message, nothing. Can anyone give me a hint on how to a) solve or b) at least debug that problem? thank you very much, Reinhard