ASP.NET, Event Log Access, Creating new category entries in HKLM
Succeeded by modifying machine.config to change account from machine (ASPNET) to SYSTEM.
Problem is special permission is needed to create a new category key in the HKLM hive.
For more info see: http://www.gotdotnet.com/team/upgrade/v1/aspnet_account_readme.doc
Restarting IIS might be necessary after modifying machine.config.
Switching back to the “machine” account after adding entries as “SYSTEM” works. The category key exists? And now it just stopped working! So back to system on PELL. Yam has never had a problem…