Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

What is the WPI detector plugin?

  • 3 replies
  • 255 have this problem
  • Last reply by shaakir

more options

I have found this plugin installed in my Firefox browser but I have not the faintest idea of its usefullness

All Replies (3)

more options


WPI is part of the Microsoft Web Platform Installer package. For more information, please visit Microsoft at the following link:

Microsoft WPI

Thanks for using Firefox!

) Ryan
more options

The WPI file extension is associated with WCPUID and used for its plug-in files. WCPUID is an old program that displays the CPU information of your personal computer.(from:

more options

This is a really poor way to design a plug in without any easily visible references (Microsoft or otherwise) included in it. Shame.

You can find additional info in the registry under HKLM\SOFTWARE\MozillaPlugins\,version=X.X. There's a "Vendor" value, and in this case, it does say "Microsoft".

Modified by shaakir