4.0.0401.0 10.00%
4.0.0369.0 10.00%
4.0.0357.1 80.00%



MSN Toolbar by Microsoft Corporation (Signed)

Remove npwinext.dll


There are 3 versions of npwinext.dll in the wild, the latest version being 4.0.0401.0. It is integrated as a plugin to Internet Explorer as a Browser Helper Object, often without any obvious user interface, and will load for each instance of IE. The average file size is about 494.84 KB. The file is a digitally signed and issued to Microsoft Corporation by Microsoft Corporation. The library is loaded into Internet Explorer as a BHO (browser helper object).


File name:npwinext.dll
Publisher:Microsoft Corporation
Product name:MSN® Toolbar
Typical file path:C:\Program Files\msn toolbar\platform\4.0.0357.1\npwinext.dll
Issued to:Microsoft Corporation
Authority (CA):Microsoft Corporation
Effective date:Wednesday, October 22, 2008
Expiration date:Friday, January 22, 2010


(Note, the behaviors below are for all versions of npwinext.dll, select a unique version for details.)
Internet Explorer Browser Helper Object
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects'
  • BHO CLSID: {d2ce3e00-f94a-4740-988e-03dc2f38c34f}
Internet Explorer toolbars
Located in the registry at 'SOFTWARE\Microsoft\Internet Explorer\Toolbar'
  • CLSID: {8dcb7100-df86-4384-8842-8fa844297b3f}
Google Chrome plugins
Stored per user in the directory 'Google\Chrome\User Data\Default\Preferences'
  • Name: 'npwinext.dll'
Mozilla plugins
  • MSN Toolbar

VersionsAll file variations of npwinext.dll

MD5SHA-1File size
69e8aecc6aa209b0638e562d646d8d87 378908ad12db4cc4a8bfc38ea8fb7b77f27f2aad 494.84 KB
9980bbc51bab11bd52b67da0f8e1ef21 f758793d75a75a380c8955a2e0b3d849ba09e27c 494.84 KB
94f96defa48629aa8946142584bfc17c b923763a009fbfaadb5f67c02b19a3f195981aea 494.84 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 80.00%
Microsoft Windows XP 10.00%
Windows Vista Home Premium 10.00%

Distribution by countryDistribution by country

United States installs about 90.00% of MSN® Toolbar.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Toshiba 66.67%
ASUS 22.22%
Hewlett-Packard 11.11%
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