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What is npauthz.dll?

Part of Microsoft Office 2010 by Microsoft

What is it?

The Office Authorization plug-in for NPAPI browser plug-in allows you to open and edit files using Microsoft Office applications.
Download Boost and enjoy your PC. Speed up Microsoft Office 2010 and optimize your PC.

How is npauthz.dll loaded?

Mozilla plugin - npauthz.dll runs within the context of the Mozilla Firefox web browser as plugin. npauthz.dll is typically associtated with identifier name of Office Authorization with and identifier of SOFTWARE\MozillaPlugins\@microsoft.com/OfficeAuthz,version=14.0. Plugins help the Mozilla Firefox Web browser perform specific functions like viewing special graphic formats or playing multimedia files like Adobe Flash or Apple QuickTime.
Google Chrome plugin - npauthz.dll runs within the context of the Google Chrome web browser as plugin. Chrome supports browser plugins that run as an unrestricted separate process outside the browser and cannot be sandboxed as tabs. Plugins are generally used to add functions to the Chrome browser.


What is the community is seeing?What is the community is doing?
About 0.4% of all Boost users have the npauthz.dll file.Of the 0.4% of npauthz.dll users, 14.3% have disabled it.
Typical file (disk image) location:
C:\Program Files\microsoft office\office14\npauthz.dll

What else is related?

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.196608)
Windows XP Professional (5.1.2600.196608)
Windows Vista (TM) Business (6.0.6002.131072)
Windows Vista (TM) Home Basic (6.0.6002.131072)
Windows Vista (TM) Home Premium (6.0.6002.131072)
Windows Vista (TM) Ultimate (6.0.6002.131072)
Windows Vista (TM) Home Premium (6.0.6002.131072)
Microsoft Windows 7 Ultimate (6.1.7600.0)
Windows 7 Home Premium (6.1.7600.0)
Windows 7 Professional (6.1.7600.0)
Windows 7 Ultimate (6.1.7600.0)
Windows 7 Enterprise (6.1.7600.0)

About Microsoft Corporation

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: npauthz.dll
Publisher: Microsoft Corporation (verified)
Name: Microsoft Office 2010
Description: Office Authorization plug-in for NPAPI browsers
Version: 14.0.4730.1010
Size: 16.41 KB
Original file name: NpAuthz.dll

Digital certificate

Certificate authority: Microsoft Corporation
Effective date: 12/7/2009
Expiration date: 3/7/2011

Mozilla plugin details

Name: Office Authorization
Command: SOFTWARE\MozillaPlugins\@microsoft.com/OfficeAuthz,version=14.0

Google Chrome plugin details


Image hashes

MD5: 7e2b763cf671adb558d5f7110889d469
SHA-1: e9b193accdcf635b14a7635af0e08bfc5d4d4f63
SHA-256: 9b221926165a8c577994d2992b5410bd9699e41bf4b92241624b7c69b5eb8707

PE image details

File entropy: 6.26049
File packed: No
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