Just like what you get in the file properties's Digital Signature tab, I want a command line to get this information. I don't need to sign the file, just check the signature status. Thanks,

cirodd, Try this powershell one-liner: (get-authenticodesignature c:\"program files"\ccleaner\ccleaner.exe).status -eq "valid" I've used c:\program files\ccleaner\ccleaner.exe as the filepath

Now if I've aroused your interest in PowerShell, then WIN | type Powershell | do NOT hit enter | Windows PowerShell will give you a command-line interface Windows GowerShell ISE will give you a graphical interfact to PowerShell. Here are some links for you: PowerShell PowerShell Cookbook Powershell Forum Windows PowerShell Core Winows PowerShell Features The "cookbook" isn't current but still a valid intro to PowerShell. You don't need to understand all or be a wizard with powershell to use powershell.

It's very interesting, I've never used it before. Also, I found powershell command can be run under DOS just as: powershell -command (get-authenticodesignagture c:\'program files'\ccleaner\ccleaner.exe).status -eq 'valid' The only thing to be noticed is all " should be replaced with ' in DOS. Thanks Karl!

Glad to help and thanks for reminding me about the double to single quote. On can also use %programfiles% if desired.

Hi, If you need and external tool, you can use signtool.exe. It is part of the Windows SDK, it takes command line arguments. For more information, you can refer to: http://msdn.microsoft.com/en-us/library/aa387764.aspx Best Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.