Are ya'll running 5.0?
Check this out - http://docs.splunk.com/Documentation/Splunk/5.0.1/Installation/Aboutupgradingto5.0READTHISFIRST#The_Windows_performance_monitoring_input_is_now_modular
The Windows performance monitoring input is now modular
The performance monitoring inputs for Windows now use the new modular input type. When you upgrade, Splunk replaces the existing scripted input with the new modular input. During the migration, Splunk saves the existing perfmon.conf file and renames it to perfmon.conf.migrated. It then copies the inputs defined in that file and places them into inputs.conf under similarly-named stanzas.
This has major impact for users who use the Splunk App for Microsoft Exchange and the Splunk App for Active Directory. Those apps use performance monitoring inputs extensively. If you use either of these apps, we suggest that you do not upgrade the apps until compatible versions are released.
For additional information on what a modular input is, read "Modular inputs overview" in the Developing Views and Apps for Splunk Web Manual.
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