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What is npctrl.dll?

Part of Silverlight Plug-In by Microsoft

What is it?

Microsoft Silverlight is a free web-browser plug-in that enables interactive media experiences, rich business applications and immersive mobile apps.
Description of npctrl.dll from Microsoft
Microsoft Silverlight is a powerful tool for creating and delivering rich Internet applications and media experiences on the Web. Silverlight 5 builds on the foundation of Silverlight 4 for building business applications and premium media experiences. Silverlight 5 introduces more than 40 new features, including dramatic video quality and performance improvements as well as features that improve developer productivity.
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How is npctrl.dll loaded?

Google Chrome plugin - npctrl.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.
Mozilla plugin - npctrl.dll runs within the context of the Mozilla Firefox web browser as plugin. npctrl.dll is typically associtated with identifier name of Ag Player with and identifier of SOFTWARE\MozillaPlugins\@Microsoft.com/NpCtrl,version=1.0. 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.


What is the community is seeing?What is the community is doing?
About 0.4% of all Boost users have the npctrl.dll file.Of the 0.4% of npctrl.dll users, 12.5% have disabled it.
Typical file (disk image) location:
C:\Program Files\microsoft silverlight\3.0.50106.0\npctrl.dll

What else is related?

What Windows OS versions does this run on?

Windows 7 Ultimate (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: npctrl.dll
Publisher: Microsoft Corporation (verified)
Name: Silverlight Plug-In
Description: 3.0.50106.0
Version: 3.0.50106.0
Size: 856.32 KB
Original file name: npctrl.dll

Digital certificate

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

Google Chrome plugin details

Name: npctrl.dll

Mozilla plugin details

Name: Ag Player
Command: SOFTWARE\MozillaPlugins\@Microsoft.com/NpCtrl,version=1.0

Image hashes

MD5: 98c15480c8ad4fef5cf62769fae65c92
SHA-1: 1c582f273ccae0f621018c3345799cae48380822
SHA-256: c620ad06d701cd71a5159df9cc0f5a1c0f79725b493f1a0b4a3c37fb99fe4ee7

PE image details

File entropy: 6.88495
File packed: No
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