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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Process Name

  

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User Optional User Optional
Unwanted Unwanted
Spyware / Adware Spyware / Adware
Virus Virus


bttnserv.exe (Keyboard button support)

Percentage of recently scanned PC's with this process running: 0.05%
Average CPU use for this program: 0%
Average RAM for this program: 2 MB


In addition to the file name, bttnserv.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:Compaq
Product contains:BttnServ

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




Win Patrol

BTTNSERV.EXE - Handles the special buttons (volume control, etc.) on the Compaq keyboard. Leave this enabled unless you never use those keys.

bttnserv.exe  is required by third-party software or hardware and should not 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 bttnserv.exe, we have detected more than 10 different MD5 hashes. Click on a hash to research the hash in Google.

Program Name MD5 Count
bttnserv.exe> 10
MD5 Hashes
# MD5 Size
1 0xa5dafa704b4f3803aa8e0f9705c5dcfd 96 KB
2 0x96b147bd3d9e7b3f122bae0a064355d2 96 KB
3 0xda31cf72a49cd4c78487987ceb588d33 104 KB
4 0x164461cc3b0d7c399a4c9d6294018400 83 KB
5 0x3d9233257829b193eece65aa28c4b25c 120 KB
MD5 Hashes
# MD5 Size
6 0xd617de52be39ea98b3be52b5d44c8ee5 94208 bytes
7 0x35ec7110ba03bdb5cb75662a7f52c343 98304 bytes
8 0x48b3a6d058968c7b468042e10616cff5 92672 bytes
9 0x61694b2622bc747b6abcb34d9f8b6094 86016 bytes
10 0x5fef96a45cd693de48afbb591929f49f 122880 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.

Find out how to make your computer faster by running our Free Performance Scan.

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.