Welcome to the PC Pitstop Process Library. We have an extensive list of the most common processes currently running on PCs. Use this library to inspect the safety of your running processes on a regular basis.

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arservice.exe (MCE "Away Mode")

Percentage of recently scanned PC's with this process running: 0.43%
Average CPU use for this program: 0%
Average RAM for this program: 2 MB


In addition to the file name, arservice.exe, the following version information is used to identify the file. If the file does not match this information, it may be a different file. To ensure the file is absolutely correct, run a free and comprehensive scan.

Vendor contains:Microsoft
Product is not specified

To view version information with Windows Explorer, right-click the file and click Properties, Version.


Vendor or Distributor's Web Site

http://support.microsoft.com/kb/902437


Detailed Description and/or Removal Instructions

http://support.microsoft.com/kb/909311


Win Patrol

arservice.exe is a program to address the "will not start" problem with 2004 Edition of Windows XP Media Center. Part of the "Away Mode" support for Windows XP Media Center Edition. Appears to have been called "Always Ready" during development, which resulted in the ARService name.

arservice.exe  is an essential part of Windows and required for Windows to work properly. It should never be disabled.

PC Pitstop recommends WinPatrol Plus for monitoring all of the background activity on your PC. WinPatrol Plus provides an easy to understand descriptions of over 15,000 processes and programs.


MD5 hashes is the way that computers can define the uniqueness of a file. Anti malware vendors frequently use this technique to detect and clean malware. It is common for a program to have multiple MD5 hashes as the developers create newer versions of the program. For the program called arservice.exe, we have detected more than 10 different MD5 hashes. Click on a hash to research the hash in Google.

Program Name MD5 Count
arservice.exe> 10
MD5 Hashes
# MD5 Size
1 0xed8c8507c0bf540da3b36d4b4a78c24e 58880 bytes
2 0x9a0d9b2e263bede80fb79ddbad240ec1 58880 bytes
3 0x9f9aa480baaf48695b920c425ffe5425 58880 bytes
4 0xf589e802b7f26cfde7da0f59f7c4d467 65728 bytes
5 0x1f2e7bbe351b404b29b9ae265cc53aaf 58880 bytes
MD5 Hashes
# MD5 Size
6 0x79175cc5ec0136b13d0b63092b49e281 102400 bytes
7 0xf26ab42e9868cd947c5f56b89ad8edf5 58880 bytes
8 0xbb9c85828c8a833bba8a5cea95ed9363 76288 bytes
9 0x1ed609574e4a0e57187bf2e99cd39214 75776 bytes
10 0xcc80250b8e0711a705ee3d8882ea9e67 77824 bytes


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PC Pitstop is the undisputed leader in PC diagnostics. Our running process library is culled from our database of over 100 million PC diagnostics and scans.

To find the latest driver for your computer we recommend running our Free Driver Scan.

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Tips from the PitCrew

Tips from the Pit Crew

Every process running on your computer takes up CPU cycles and valuable memory. For optimal PC performance and resource utilization, you should be aware of every process on your computer. PC Pitstop designed this process library to help you know which processes are worthwhile and others that slow system performance.

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Important Note

A file name alone may not be enough for positive identification. PC Pitstop's Overdrive tests and spyware scan use information such as the company name, product name, or install directory.

If you are unable to identify a file, ask about it in our forums after running our full tests.