I have a test machine, IIS installed,
My web application installed there, it was running well.
Later, I install the VS2010. try trace code.
I change the web site map path. Build application .
when try load page . Got Could not load type 'System.ServiceModel.Activation.HttpModule'
fix by : http://msdn.microsoft.com/en-us/library/hh169179(v=nav.71).aspx
cd\Windows\Microsoft.NET\Framework64\v4.0.30319
aspnet_regiis.exe -iru
iisreset
