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MOSS 2007 Installation Fails: Cannot find ASP.NET 2.0

January 14, 2008

After installing Windows Server 2003, ASP.NET 2.0 and it’s updates, I’ve found that the MOSS 2007 installation often cannot start because it cannot find ASP.NET 2.0.  After browsing into the Internet Information Server MMC and into Web Service Extensions, “ASP.NET v2.0.50727” is not visible.

To fix this, you must re-register ASP.NET 2.0.

For most servers, the ASP.NET 2.0 folder is located at:


The command you need to run is (with full path):

%systemroot%\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis -ir

The “-ir” options install ASP.NET 2.0 as well as update existing (if there are any) scriptmaps (regardless of version) to ASP.NET 2.0.  After this, it’s not necessary to reboot, but if this isn’t a production server it can’t hurt. It is Windows, of course, and Windows loves its reboots.  🙂

  1. Linda Rudin
    February 13, 2008 at 7:38 am

    This just saved me a painful support call to Microsoft – thanks!

  2. david
    October 2, 2008 at 8:54 am

    thanks for taking to write this little helpful instruction.

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