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What is w3ext.dll?

Part of Internet Information Services by Microsoft

What is it?

IIS W3ext Module is part of IIS. Internet Information Services (IIS) is a web server application and set of feature extension modules created by Microsoft for use with Microsoft Windows.
Description of w3ext.dll from Microsoft
IIS (Internet Information Services) is a secure, reliable, and scalable Web server that provides an easy to manage platform for developing and hosting Web applications and services.
(w3ext.dll is a system file that is installed with Windows)
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How is w3ext.dll loaded?

Approved shell extension - w3ext.dll has a CLSID (globally unique identifier) of {5a61f7a0-cde1-11cf-9113-00aa00425c62} with and identifier of IIS Shell Extension. When the system detects that the user is downloading an external program that runs as part of the Windows user interface, the system searches for a digital certificate or requests that the user approve the action. If you enable this policy, Windows only starts approved programs.


What is the community is seeing?What is the community is doing?
About 0.2% of all Boost users have the w3ext.dll file.Of the 0.2% of w3ext.dll users, less than 1% have disabled it.
Typical file (disk image) location:

Are there other versions of Internet Information Services?

What else is related?

What Windows OS versions does this run on?

Windows Server 2003, Standard Edition (5.2.3790.131072)

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: w3ext.dll
Publisher: Microsoft Corporation (verified)
Name: Internet Information Services
Description: IIS W3ext Module
Version: 6.0.3790.3959 (srv03_sp2_rtm.070216-1710)
Product version: 6.0.3790.3959
Size: 90.5 KB
Original file name: w3ext.dll
Windows file protection: Yes

Approved shell extension details

CLSID: {5a61f7a0-cde1-11cf-9113-00aa00425c62}
Command: IIS Shell Extension

Image hashes

MD5: 633fdef2b9a59a95fc0804f502258b8c
SHA-1: df0ab76f17759898699848869b6fe9375e47a4f2
SHA-256: e25230a1c6456e7609741e1339a0f979a7d131725596f9bbaaad64a689a1ceb2

PE image details

File entropy: 6.32033
File packed: No
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