Article ID: 919283 - View products that this article applies to.
When you retrieve the properties for a virtual directory in Microsoft Internet Information Services (IIS) Manager, the ASP.NET tab of IIS Manager does not appear. Alternatively, the Edit Configuration button on the ASP.NET tab is disabled.
This problem occurs when any one of the following conditions is true:
This problem occurs because the 32-bit version of IIS Manager is incompatible with 64-bit computers that use Microsoft ASP.NET.
This problem can also occur because the 64-bit version of IIS Manager cannot load the 32-bit Aspnet_isapi.dll file as a native 64-bit file. Additionally, the 64-bit version of IIS Manager cannot load this file in WOW64 32-bit mode.
To work around this problem, set the Enable32bitAppOnWin64 to False in IIS.
For more information about how to configure IIS to run 32-bit applications on 64-bit computers, visit the following Microsoft Web site:
Article ID: 919283 - Last Review: June 29, 2011 - Revision: 4.0