first of all you have to install the dotnet framework 2 then in command prompt go to
directory whrer C:\ is your system dir.
then just type “aspnet_regiis.exe -i” command (without quots)

then tool will show something like 

Start installing ASP.NET (2.0.50727).

Finished installing ASP.NET (2.0.50727).

and now you can host your ASP.NET 2.0 website with few changes in your webconfig file in your project.

Have a good day.