How to deal with the disappearance of ASP. NET options on the default site of IIS

One day, you need to switch IIS from 2.0 to 1.1, and go to the default site to find ASP. net tab, not found for a long time, but IIS provides the DOTNET framework function, very strange, find a half-day solution on the Internet as follows:
The reason is that if you have Installed VMware, The Asp.net project selection in IIS will be lost.
1. iisreset/stop in cmd to stop the IIS service
2. Delete the enable32bitapponwin64 = "true" line in c: \ windows \ system32 \ inetsrv \ metabase. xml.
3. iisreset
Return to IIS, And the Asp.net tab is back.