The Microsoft Office Configuration Analyzer Tool (OffCAT) provides a detailed report of your installed Office programs. This report includes many parameters about your Office program configuration. It also highlights known problems that are found when OffCAT scans your computer. For any problems that are listed in the report, you're provided a link to a public-facing article (usually a Microsoft Knowledge Base article) about each problem so that you can read about possible fixes. If you're a Helpdesk professional, you can also save the report to a file so that it can be viewed in OffCAT on another client on which the tool is installed.
Note This article is updated to include new information about OffCAT version 2.2.
OffCAT system requirements
The following operating systems are supported:
Windows 8 and Windows 8.1
Windows Vista Service Pack 2
Windows Server 2008 and Windows Server 2008 R2
Windows Server 2012 and Windows Server 2012 R2
This download works together with the following versions of Office:
Microsoft Office 2016 (32-bit or 64-bit) (Click-to-Run or MSI installations)
Microsoft Office 2013 (32-bit or 64-bit) (Click-to-Run or MSI installations)
Microsoft Office 2010 (32-bit or 64-bit)
Microsoft Office 2007
You must have the .NET Framework 4.5 installed to use OffCAT 2.2. To determine whether you have .NET Framework 4.5 installed, follow these steps:
Windows 10, Windows 8 , Windows 8.1 , Windows Server 2012
These versions of Windows have .NET Framework 4.5 included as part of the operating system. Therefore, to OffCAT 2.2, no updates to the .NET Framework are required.
Windows 7,Windows Vista
Click Start, and then click Control Panel.
Click View by, and then select either Small icons or Large icons.
Click Programs and Features.
Examine the list of installed programs.
If you have .NET Framework 4.5 installed, you see an entry that resembles the following entry in the list of installed programs.
Note The following screen shot shows the updated version of the .NET Framework, 4.5.2.
If you have .NET Framework 4.5 or a later version installed, you can use OffCAT v2.2 without installing any updates to the .NET Framework.
If you don't see a .NET Framework entry that includes "4.5" in the name, go to step 5.
Click the following link, and then click Download on the Microsoft Download Center page.
The steps that you take to install OffCAT by using the OffCAT.msi file vary, depending on your version of Windows. Use the steps that are appropriate for your version of Windows.
Windows 10, Windows 8, Windows 8.1, Windows 7, Windows Vista
Start the OffCAT installation. To do this, either click Run when you're prompted by the Microsoft Download Center, or double-click the OffCAT.msi file that you downloaded from the Microsoft Download Center.
If you agree with the terms, select I accept the terms in the License Agreement, and then click Next.
In the Additional Options dialog box, locate the Launch OffCAT at the end of setup option. If you want OffCAT to start when the installation process is finished, leave this option enabled, and then click Next.
In the next dialog box, click Install to start the installation of OffCAT.
If you're prompted by User Account Control to allow the program to make changes to your computer, click Yes.
Note This prompt usually occurs when you have an earlier version of OffCAT installed. The prompt occurs because the OffCAT installer requires permission to uninstall the earlier version of OffCAT.
Click Finish to complete the installation of OffCAT.
The first time that OffCAT starts after the installation has finished, the OffCAT icon in the notification area displays the following alert.
Windows Server 2012,Windows Server 2008
Because of the security features that are built into Windows Server, you have to install OffCAT in an elevated context by using the following steps.
Right-click the Command Prompt shortcut, and then select Run as administrator.
At the command prompt, change to the folder that contains the OffCAT.msi file.
Note If you don't follow these steps on Windows Server, you'll receive the following error during Setup:
Microsoft Office Configuration Analyzer Tool 2.2 must be installed with elevated permissions on Windows Server. Please restart this installer as an Administrator.
Windows Server with Terminal Services
If you're going to use OffCAT in an environment that includes Terminal Services, use the following steps to install OffCAT. These steps are required to have OffCAT available to each user who logs on to a Remote Desktop session.
Download and save OffCAT.msi from the Microsoft Download Center to a folder on the server.
Log on to the server as a user who is a member of the local Administrators group.
Click Start, click All Programs, click Accessories, and then right-click Command Prompt.
Click Run as administrator.
At the command prompt, change to the folder that contains OffCAT.msi.
Note In this example, the InstallDir path is for a server with a 64-bit version of Windows. For a 32-bit version of Windows, use C:\Program Files\Microsoft\OffCAT for the path.
When the installation is finished, the OffCAT files are located in folder that's specified by the InstallDir argument (from the command-line), and a shortcut appears on the Start menu for all users who create a Remote Desktop session on the server.
How to start OffCAT and generate a report
To start OffCAT, follow the appropriate steps for your version of Windows.
In the Search the web and Windows box, type OffCAT.
Select OffCAT - Office Configuration Analyzer in the search results.
Windows 8.1, Windows 8
In the Search results, click the link for Microsoft Office Configuration Analyzer Tool.
Tip If you want to pin the OffCAT icon to your Start page or the Taskbar, right-click the Microsoft Office Configuration Analyzer Tool shortcut, and then select one of the 'Pin' options.
Windows 7, Windows Vista
On the Start menu, click Microsoft Office Configuration Analyzer Tool.
Generating an OffCAT scan
After you start OffCAT, follow these steps to generate an OffCAT report for an Office program:
On the NEW SCAN page, select the Office program that you want to scan.
The following screen shot shows Outlook as the selected program.
To see all the Office programs that you currently have installed, click More applications.
Note The Scan control fills with color (based on your OffCAT theme color) when you have one program selected and you hover over the Scan control.
Wait for the scanning process to finish.
Review the list of the issues that are identified during the scan.
Read the detailed description of any issue in the reading pane under Solution and Issue Description.
Click the Click here to see possible online solutions to this issue link in the reading pane to see the steps to resolve the selected issue.
Some issues also include a Fix it for me link at the top of the Solution and Issue Description pane.
When you click the Fix it for me link, OffCAT makes the necessary changes to your registry to fix this problem.
Note When you click Fix it for me, the changes that are made by OffCAT are the same changes that are provided in the article that's referenced by the Click here to see possible online solutions to this issue link. The changes can be undone, as shown in the following screen shot.
How to uninstall OffCAT
To uninstall OffCAT, follow these steps:
Close all open Office programs.
Right-click the OffCAT icon in the notification area, and then click Exit.
Open Control Panel.
In Control Panel under Programs, click Uninstall a program.
In the list of programs, select Microsoft Office Configuration Analyzer Tool 2.2, and then click Uninstall.
Click Yes to confirm that you want to uninstall Microsoft Office Configuration Analyzer Tool 2.2.
Current issues and frequently asked questions (FAQ)
This section will be updated regularly as new issues are discovered. Please check back here periodically to see whether new items are added.
Can I scan Office 2003 programs by using OffCAT v2.2?
OffCAT does not support scanning Office 2003 programs. See the following page for links to self-support options:
Depending on the detected issue, you may also see a Fix it for me link at the top of the Solution and Issue Description pane.
When you click the Fix it for me link, OffCAT will make the necessary changes to your registry to fix this problem.
Note When you click Fix it for me, the changes that are made by OffCAT are the same changes that are provided in the article that's referenced by the Click here to see possible solutions to this issue link. The changes can be undone.
Addition of ROIScan to the tools found under ADVANCED Tools
The Robust Office Inventory Scan (ROIScan) tool has been included as a vbs script in TechNet for many versions of Office. This is a popular tool for troubleshooting issues such as Office installation and Office updating.
Easier access to log files
The previous screen shot shows a new tab that's labeled Collected Log Files. This tab is located under Configuration Details in your reports. The list of files in Collected Log Files varies by the application that's scanned or the tool that's run under Advanced Tools. For example, the following screen shot shows files that are available for an Excel scan.
More control over the OffCAT icon in the Windows Notification area
OffCAT adds an icon to the Windows Notification area that's part of a feature set that manages rule file updates, add-in integration, and real-time crash detection. To give you more control over the display of this icon, we added the Disable option to the context menu for the icon.
Give OffCAT your rating
In addition to the Tell us what you liked and Tell us what we could do better feedback options, you can also rate your OffCAT experience by using the new 5-star rating control on the HELP/FEEDBACK screen.
Can OffCAT be scripted to run on a client on which OffCAT isn't installed?
Yes. The files that are installed by the OffCAT.msi file include OffCATcmd.exe. This is a command-line version of OffCAT. For more information, see the "Generating a Scan using the Command-line version of OffCAT" section of the OffCAT v2.2 ReadMe - full version.docx file.
Which Office programs can be scanned by OffCAT?
OffCAT v2.2 can scan the following Office program:
OneDrive for Business
Skype for Business
Why does selecting more than one program tile on the NEW SCAN PAGE generate separate scan files for each Office program?
This occurs because the OffCAT detection rules are program-specific. For example, if you're looking at a scan for Microsoft Office PowerPoint, you'll see only the detected issues that are relevant to PowerPoint. This behavior lets you focus on the Office programs that might be experiencing the most issues without having to read a large scan report for all Office programs at one time.
If you want to submit feedback or improvement suggestions for OffCAT, click HELP/FEEDBACK in the OffCAT menu bar.
When you click Tell us what you liked or Tell us what we could do better, an email message is created and addressed to OffCATsupp@microsoft.com. Please provide as many details as possible so that we can provide a thorough review for your request.
Important Please be aware that you may not be contacted after you submit feedback.
Microsoft Office Professional Plus 2013, Microsoft Office Professional 2013, Microsoft Office Standard 2013, Microsoft Office Home and Student 2013, Microsoft Office Home and Business 2013, Microsoft Office Professional Plus 2010, Microsoft Office Professional 2010, Microsoft Office Standard 2010, Microsoft Office Home and Student 2010, Microsoft Office Home and Business 2010, Microsoft Office Enterprise 2007, Microsoft Office Professional 2007, Microsoft Office Standard 2007, Microsoft Office Home and Student 2007