Microsoft provides a good number of support scripts (in vbs) to configure IIS, App Pools, and Virtual Directories from the command line. Some of them come with the IIS installation, some of them we had to download - if I remember correctly.
There are two 'sets' of these CLI vbs scripts that I'm aware of that work with IIS. One is found in the ../inetpub/adminscript folder. There's a bunch of vbs scripts in there. The other set is found in c:/windows/system32/iis*
Here's some examples of what you can do with these scripts:
- create a virtual directory: cscript c:\windows\system32\iisvdir.vbs /create webSiteName virDirName virDirPath /s serverName
- set perms on a virtual directory: c:\inetpub\adminscripts\adsutil.vbs SET w3svc/webSiteNumber/Root/virDirName/AccessFlags permNum (like 513)
- set ASP.NET version for the virtual Directory c:\windows\Microsoft.net\framework\v2.0.50727\aspnet_regiis -s w3svc/webSiteNumber/root/virDirName
- and tons more...