To register ASP.NET: 1. In a command prompt, change directory to %WINDIR%\Microsoft.net\framework\V2.0.50727 Note: For x64 ...

To register ASP.NET:
1. In a command prompt, change directory to %%WINDIR%%\Microsoft.net\framework\V2.0.50727
Note: For x64 bit systems, change directory to  %%WINDIR%%\Microsoft.net\framework64\V2.0.50727
2. Type "aspnet_regiis.exe -i -enable" to re-register ASP.NET 2.0