That worked, thank you! I also found this:
1. Go to 'Server Manager' and ensure web services role is selected, which should install IIS 7
2. The main options you need to enable when install the web services role are:
- IIS6 compatibility tools
- ASP.NET (under Application Development)
- Windows Authentication
3. After installing the web services role, run the following command (You MUST do this before installing task server, not after):
Note: If your environment happens to be using a non default site then please replace ‘Default Web Site/’ with a non-default site name below...otherwise Task Server won’t work properly.
%systemroot%\system32\inetsrv\appcmd set app "Default Web Site/" /applicationPool:"Classic .NET AppPool"
%systemroot%\system32\inetsrv\appcmd migrate config "Default Web Site/"
4. Now you’re ready to install Task Server in IIS