DIAGCAB File Extension

DIAGCAB file icon
Troubleshooting Pack Cabinet Format
  • Developer
  • Popularity
    3.9 (20 votes)

What is DIAGCAB file?

You might have heard about Microsoft’s Support Diagnostic Tool. This tool is also referred to as WTP Wizard. The main purpose of .DIAGCAB’ is to diagnose and to repair issues with the system. This is why it is called as Windows Troubleshooting Platform. Any issues with respect to hardware and software programs in Windows system can be effectively handled by a file with .DIAGCAB extension. Microsoft has classified the troubleshooting pack cabinet file that is stored in DIAGCAB Format as a system file. Even individual software vendors can offer files with this extension to troubleshoot known issues.

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.

Top File Extensions
Show more
File Extension of the day
ex_ icon


Compressed Executable Format

EX_ is a compressed EXE executable file. EX_ file stores the actual EXE executable file for a given program or application. The idea behind EX_ fo...