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What does the pmshost.exe file do?

The pmshost.exe process is also known as Media Server Host and is a part of Media Server or, as the case may be, Pinnacle Systems Media Service. This software is produced by Pinnacle Systems (www.pinnaclesys.com). An obsolete or defective version of pmshost.exe can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about pmshost.exe Media Server Host

pmshost.exe is not part of Windows, but it is important nonetheless. Pmshost.exe is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 49,152 bytes (75% of all these files) or, as the case may be, 45,056 bytes.
This process does not have a visible window, and does not appear on the taskbar. The file does not come from Microsoft and is not part of the operating system. This pmshost program is receiving or sending data on the LAN (your local network) or on the Internet. pmshost.exe appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 58% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves pmshost.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about pmshost?

it is part of pinnacle studio 10.5
anonymous
part of pinnacle studio home movie edit program
jared
It's from Pinnacle Studio. It starts when you start the pc its called Pinnacle Media Server Host. It takes like 25 MB memory
Terhook
Also included with Pinnacle ShowCenter software
Gary
It belongs to Pinnacle Media Server, not necessary for Windows (further information...)
Monica
Used by Pinnacle Media Center. It's necessary for PCTV products that stream from a computer. I've had issues with the process eating up all my CPU cycles--seems to just be buggy.
sHaDoW

Summary: 3 users judge pmshost.exe to be an essential file that should not be touched. 2 users consider it harmless. source: file.net

How to uninstall Media Server or Pinnacle Systems Media Service

pmshost.exe Media Server Host fix

To remove Media Server Host from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for Media Server or Pinnacle Systems Media Service in the list of available programs.
  5. Click Uninstall.

How to tell if pmshost.exe (Media Server Host) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of Media Server Host. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Media Server Host or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or pmshost.exe is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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