What error is this and what to do.?

[aditya12c]

I installed .NET now when i start ASP.Net i get da following error

VS.Net has detected that the specified web server is not running ASP.Net version 1.1. You will be unable to run ASP.Net web application or service

but when i try to open VB.Net framework application it works fine..
What to do.. i am new to ASP.Net. is der anything i have to start.. plz help..

 

[aditya12c]

start>>run>>cmd
cd %windir%\microsoft.net\framework\v1.1.4322
aspnet_regiis -i

Problem solved..