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What is msimn.exe?

Part of Outlook Express by Microsoft

(msimn.exe is a system file that is installed with Windows)
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How does msimn.exe run?

Process - msimn.exe is an instance of a running program. This 32-bit program executes with the privileges as the currently logged in user account. msimn.exe is executed by the process explorer.exe (Windows Explorer by Microsoft).

How does msimn.exe start?

Shell open command - msimn.exe is typically associtated with identifier name of mailto with and identifier of "C:\Program Files\Outlook Express\msimn.exe" /mailurC:%1. A Shell Open Command allows for an association of a file extension and a program. This association allows an application to be run when the icon or a context menu item is clicked upon in the Windows Explorer window.


What is the community is seeing?What is the community is doing?
About 0.1% of all Boost users have the msimn.exe process running.Of the 0.1% of msimn.exe users, less than 1% have disabled it.
How resource intensive is msimn.exe?
Comparison based on the average resource utilization across all programs.
0.08171% CPU817095.9%
Average CPU utilization across all programs is 0.00001%.
25.43 MB RAM118.1%
Average private memory utilization across all programs is 21.53 MB.
 24 /min1.1%
Average I/O read and write operations for all programs is 2,253 per minute.
431 GDI objects287.3%
Average number of GUI GDI and USER objects for all programs is 150.
          24 context switches/sec24.0%
Average context switches for all programs is 100 per second.
Typical file (disk image) location:
C:\Program Files\outlook express\msimn.exe

Are there other versions of Outlook Express?

What modules are loaded?

A module is a dynamic link library (DLL) or an executable file that is loaded into the process. Below is a list of non-system modules that are loaded by Outlook Express.

What else is related?

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.131072)
Microsoft Windows XP (5.1.2600.196608)
Microsoft Windows XP Home Edition (5.1.2600.196608)
Windows XP Home Edition (5.1.2600.196608)
Windows XP Professional (5.1.2600.196608)
Windows Vista (TM) Home Premium (6.0.6001.65536)
Windows Vista (TM) Ultimate (6.0.6002.131072)
Windows 7 Home Premium (6.1.7601.65536)
Windows 7 Home Premium (6.1.7601.65536)

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: msimn.exe
Publisher: Microsoft Corporation (verified)
Name: Outlook Express
Description: Microsoft® Windows® Operating System
Version: 6.00.2900.5512 (xpsp.080413-2105)
Product version: 6.00.2900.5512
Size: 59 KB
Original file name: MSIMN.EXE
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.1089604945%
Privileged CPU: 0.0272509069%
User CPU: 0.08170958755400%
Privileged CPU time: 19727.48 ms
Privileged CPU time /min: 21 ms
Context switches /sec: 24
Memory utilization averages
Committed memory: 184.37 MB
Peak committed memory: 691.75 MB
Paged memory: 25.43 MB
Peak paged memory: 40.69 MB
Paged system memory: 200.39 KB
Non-paged system memory: 19.78 KB
Working set memory: 13.66 MB
Peak working set memory: 45.49 MB
Min working set memory: 8.56 MB
Private memory: 25.43 MB
Page faults: 240,149
Page faults /min: 377
Process I/O averages
Total read operations: 21,961
Read operations /min: 22
Total read transfer: 36.57 MB
Read transfer /min: 71 KB
Total write operations: 1,396
Write operations /min: 2
Total write transfer: 19.33 MB
Write transfer /min: 31.39 KB
Total other operations: 112,696
Other operations /min: 152
Total other transfer: 4.6 MB
Other Transfer /min: 2.68 KB
GUI Object Averages
GDI objects: 431
USER objects: 228
Handle count average: 504
Thread count average: 15
Thread resource averages

Process details

Runs as (owner): User
Integrety level: Undefined
Windows platform: 32-bit
System Tray: Yes
Parent Process
Child Process
Process Command
"C:\Program Files\Outlook Express\msimn.exe"

Shell open command details

Name: snews
Command: "C:\Program Files\Outlook Express\msimn.exe" /newsurC:"%1"

Network connectivity

TCP: server-54-240-188-38.sea50.r.cloudfront.net on port 1120
UDP: LISTENING on port 1072
UDP: LISTENING on port 1106
UDP: LISTENING on port 4068
UDP: LISTENING on port 2408
Windows Firewall allowed program: Yes

Image hashes

MD5: 1eeae496a51f017d04dd41322935d2b9
SHA-1: f7afaf8e61263e3117a762ae2f817dff9f5ccc44
SHA-256: 5c60d72118528ee01cce426a686b32f949a0153919868aaf388f32f8f6233a9c

PE image details

Subsystem: Windows GUI
Langauge*: Microsoft Visual C++
File entropy: 5.62607
File packed: No
Import Table
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