This is what I obtained:

"For security reasons, pages executed by IIS are prohibited from running any commandline programs (especially those under System32, including cmd.exe).
You can break some ACLs or elevate user privileges to "make it work", but realize that you are responsible for compromising your own system's security."

But, for that particular task, I really need to control that from the Web. So, what kind of ACL would be involved here?