IEDiagCMD.exe is a small utility that generates logs requires to troubleshoot issues with Internet Explorer in Windows. It is typically located under C:\Program Files\Internet Explorer on a x86 OS install and C:\Program files (x86)\Internet Explorer on an x64 OS install and can prove to be a very useful tool while troubleshooting Internet Explorer problems.

IEDiagCMD.exe

To bring it up, just type IEDiagCMD.exe in start search and hit Enter. When you execute IEDiagCMD.exe you will see a black window that stays open for few seconds and then closes by generating a cab file on your desktop. Double-click and open the files and you will notice that it contains a few logs and files.

• The first file we know it’s the CBS log that generates mostly after running a system integrity check (sfc /scannow).
• The second file is Windows Update Log which would have you Windows update history and related information.
• The third file is the Compatibility View (CV) list. If you want to know more about it check this MSDN article.
• The next one is Branding log file that helps us in troubleshooting issues with IE
• The next one Windows_panther_unattend.xml I believe  it an answer file generated at unattended install
• The next two files are related information about you IE version etc. you can open and view it in Notepad.

Here is what my C__Program Files (x86)_Internet Explorer_signup_install.ins file looks like:

[Branding]
CompanyName=Microsoft Corporation
Wizard_Version=10.00.8102.0
Version=10,00,8102,0
Custom_Key=MICROSO
Global=1
IE4 Welcome Msg=1
Platform=2
GUID={7211FFE6-C149-11D0-AFF0-00AA003758BB}
Type=0
NoClear=1

When you need support or help while troubleshooting  Internet Explorer issues in forums or from your IT support, it is a good idea to include this IEDiag.cab file with it so that it will  make the troubleshooting process easier.

Thanks to my eightforums co-member Bill2 for telling me about this tool.