I'm trying to run jetstress on one of our new exchange servers we have built but I can't get it to run. I keep getting the following error: 5/3/2010 4:21:00 PM -- Microsoft Exchange Server Jetstress Core Engine (version: 08.02.0060.000) detected. 5/3/2010 4:21:00 PM -- Windows Server (R) 2008 Enterprise Service Pack 2 (6.0.6002.131072) detected. 5/3/2010 4:21:00 PM -- Microsoft Exchange Server Database Storage Engine (version: 08.02.0176.000) detected. 5/3/2010 4:21:00 PM -- Microsoft Exchange Server Database Storage Engine Performance Library (version: 08.02.0176.000) detected. 5/3/2010 4:21:00 PM -- MSExchange Database or MSExchange Database ==> Instances performance counter category is not registered. 5/3/2010 4:21:00 PM -- Database Storage Engine Performance Library is successfully registered. 5/3/2010 4:21:00 PM -- Database Storage Engine Performance objects and counters are successfully loaded. 5/3/2010 4:21:00 PM -- Advanced Database Storage Engine Performance counters are successfully enabled. 5/3/2010 4:21:00 PM -- This process is required to restart for the changes to take effect. I have searched the forums and tried all of the suggestions to no avail. I have tried the 4-required ESE files from our test environment as well as the files from our current environment. I am able to get it to run on our test server however it is a VM and therefore not attached to our storage array. I have made sure I am using the 64bit version of Jetstress since we are running exchange 2007 SP2 x64 on Server 2008 x64 not R2.

Hello Check this below link http://support.microsoft.com/default.aspx/kb/555554?p=1 Thanks MHussain

Hi Any update on this Issue. Thanks Mhussain