This article describes the Microsoft Exchange Server Performance Troubleshooting Analyzer tool for Microsoft Exchange Server 2003.

Microsoft has released the Exchange Server Performance Troubleshooting Analyzer tool for Exchange Server 2003. Use this tool to troubleshoot the following situations:

•	A mailbox or public folder server is experiencing performance problems.
•	Users report that specific actions cause Microsoft Outlook to stop responding (hang).
•	For some users, the remote procedure call (RPC) Cancel Request dialog box is displayed.
•	You suspect that the Exchange server is experiencing an unusually high RPC load.

Run the Exchange Server Performance Troubleshooting Analyzer tool when the problem is occurring. The tool will complete the following tasks:

•	Identify performance problems that may cause Microsoft Outlook to display the RPC Cancel Request dialog box.
•	Analyze the data in the Microsoft Exchange Server User Monitor tool (Exmon.exe) event trace log file (.etl) to determine whether a load issue is caused by one or two users or by many users.

When you use the Exchange Server Performance Troubleshooting Analyzer tool, the tool analyzes the Exchange mailbox or public folder server that is named in the RPC Cancel Request dialog box. Then, the tool provides a report that describes the potential areas that may cause the decrease in performance.

The Exchange Server Performance Troubleshooting Analyzer tool is included with the Microsoft Exchange Troubleshooting Assistant v1.0 tool. To download the Exchange Troubleshooting Assistant v1.0 tool, visit the following Microsoft Web site: