DIAGCAB File Extension

DIAGCAB file icon
Troubleshooting Pack Cabinet Format
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What is DIAGCAB file?

DIAGCAB files contains package of data, typically compressed, used in Windows system troubleshooting. DIAGCAB is a system file used by Windows Vista; on older Windows systems such files were not supported natively. DIAGCAB may be generated with system tools makecab.exe and Cabarc.exe. DIAGCAB file format is used by Microsoft Support Diagnostic Tool, an application available as a part of WTP, a Windows problem diagnostics platform. DIAGCAB can be utilized for identifying and fixing problems and errors in software or drivers and devices used by Windows system. They can also be a part of FixIt solutions.

DIAGCAB can be supplied by various independent hardware manufacturers and dedicated diagnostics software they ship with their product. DIAGCAB are typically digitally signed for authentication and security. Also, such files may be delivered by system administrators. In order to open DIAGCAB file, one must use one of the tools included in Microsoft Support Diagnostic Tool package – msdt.exe. DIAGCAB file runs a Wizzard tool which guides user step-by-step through the system troubleshooting process. Typically, it will also send a report to a website for further analysis and potential solution.

Programs that support DIAGCAB file

We hope we helped you solve the problem with the DIAGCAB file. If you do not know where you can download the application from our list, click on the link (which is the name of the program) - you will find more information there on the location where to download the secure setup version of the required application.

What else may cause problems?

There can be more reasons which determine that you are not able to open the DIAGCAB file (apart from the lack of the proper application installed).

First - the DIAGCAB file may be incorrectly associated with the application installed to support it. In this case, you need to change this association by yourself. To do this, right-click on the DIAGCAB file that you want to edit, click "Open with" and then select the program from the list that you have installed. After this operation, the problems with opening the DIAGCAB file should be solved.

Second - the file you want to open can simply be damaged. Then, the best solution is to find a new version of given file, or download it again from the same source as before (maybe for some reason in the previous session the download of the DIAGCAB file has not been completed and it cannot be opened properly).

Do you want to help?

If you have additional information about the DIAGCAB file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on DIAGCAB file.

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