Exchange Performance Troubleshooter – EXTRA

In this blog we will be learning exchange performance troubleshooter with the help of built-in tool EXTRA. Working with performance issue is one of the critical troubleshooting area for an Exchange administrator.

Data collection requires extreme patience. Understanding symptoms can resolve the issue most of the time. In order to minimize the effort while troubleshooting such issues. Microsoft has introduced EXTRA tool (Pretty Old). The tool is user friendly and can help anyone who is new to Exchange server.

Lets Explore

In Exchange Server 2010 the tool is available in the default location.

C:\Program Files\Microsoft\Exchange Server\V14\Bin\Extra.exe

You can either run the tool from this location or you can also use Toolbox which is in EMC.


Go to start > Run and type EXTRA as shown below.


Figure 1.1 : Option to open EXTRA

Once you open the tool you will get multiple options to select in the console. Since we are going to discuss performance. We will be selecting options as follows.


Figure 1.2 : Welcome Screen

In figure 1.2 we have two options.

  • Select a task
  • Select a result file to view

We would be selecting the first option since this is the first time we are scanning our server.


Figure 1.3 : Symptom Driven Troubleshooting

In figure 1.3 it clearly says Symptom-Driven Troubleshooting. So have to first understand the symptoms before we enter into troubleshooting.

Also the tool will help us with the steps which is being performed.


Figure 1.4 : Label for identifying


Figure 1.5 : Symptoms

Based on the symptoms we can select the option listed in the dropdown menu. Most common issue is RPC Cancel Request dialogue box in Microsoft Outlook.


Figure 1.6 : Results

There are few steps which is skipped in this article, since they are self explanatory. In figure 1.6 the result is easy to understand and we can proceed further based on the informational messages.

Points to remember

RPC dialogue box always cannot be a server side issue.

It also depends on Mailbox size, database size, number of folders created inside users mailboxes.

How users are connected Online or Cached Mode. Cached mode can improve both client and server side performance.

Active directory and Global catalogue placement.


If you want to disable online mode feature for Microsoft Outlook 2010 clients via Group then please follow the steps mentioned in the below article.

Cached Exchange Mode – Microsoft Outlook 2010


Happy Learning


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