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What is mailcomm.dll?

Part of Windows Live Mail by Microsoft

What is it?

Windows Live Mail is a free of charge email client from Microsoft. It is the successor to Outlook Express on Windows XP and Windows Mail on Windows Vista. The application is available for download via the Windows Essentials suite.
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How is mailcomm.dll loaded?

PROTOCOLS handler - mailcomm.dll is typically associtated with identifier name of wlmailhtml with and identifier of {03C514A3-1EFB-4856-9F99-10D7BE1653C0}. Asynchronous pluggable protocols such as a Protocol Handlers enables applications to create pluggable protocol handlers that work with Microsoft Internet Explorer.
Approved shell extension - mailcomm.dll has a CLSID (globally unique identifier) of {0563DB41-F538-4B37-A92D-4659049B7766} with and identifier of WLMD Message Handler. 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.
Safe for initializing control - mailcomm.dll has a CLSID (globally unique identifier) of {A9A7297E-969C-43F1-A1EF-51EBEA36F850} with and identifier of CLSID\{A9A7297E-969C-43F1-A1EF-51EBEA36F850}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}. When a program is initialized, it can receive data from another program for initializing its state. This is a potential security hazard because the data could come from an untrusted source. Programs that guarantee no security breach regardless of the data source are considered safe for initialization and are registered as such.
Windows Live Mail is loaded by:


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

Are there other versions of Windows Live Mail?

What else is related?

What Windows OS versions does this run on?

Windows 7 Ultimate (6.1.7600.0)
Windows 7 Home Premium (6.1.7601.65536)
Windows 7 Ultimate (6.1.7601.65536)
Windows 7 Home Premium (6.1.7601.65536)
Windows 7 Ultimate (6.1.7601.65536)
Windows 8 (6.2.9200.0)
Windows 8 Pro (6.2.9200.0)

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: mailcomm.dll
Publisher: Microsoft Corporation (verified)
Name: Windows Live Mail
Description: Windows Live Mail
Version: 16.4.3508.0205
Size: 746.5 KB
Original file name: MailComm.dll

Digital certificate

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

PROTOCOLS handler details

Name: wlmailhtml
Command: {03C514A3-1EFB-4856-9F99-10D7BE1653C0}

Approved shell extension details

CLSID: {0563DB41-F538-4B37-A92D-4659049B7766}
Command: WLMD Message Handler

Safe for initializing control details

CLSID: {A9A7297E-969C-43F1-A1EF-51EBEA36F850}
Command: CLSID\{A9A7297E-969C-43F1-A1EF-51EBEA36F850}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}

Image hashes

MD5: 42eb2b77a3fbfdca44bd8537f236392a
SHA-1: 8532bf1fc0442b04258de30c5e6094823996c373
SHA-256: a7c8ef989317adb4e478571c2f5147354a0c374f47701e7cb26b6be96783b208

PE image details

File packed: No
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