After the uninstallation of Altiris Notification Server as per an Altiris KB article, my IIS service did not want to start.
Event viewer displayed the following error:
The World Wide Web Publishing Service service terminated with service-specific error 2147500034 (0x80004002).
Ran the following command to resolve the issue, rebooted server after execution:
regsvr32 c:\windows\system32\oleaut32.dll
Resolved!