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What does the ptc_d.exe file do?

The ptc_d.exe process is also known as PTC L-03 licensing daemon and is a part of PTC License Server Release or, as the case may be, PTC FLEXnet Admin License Server Release. This software is produced by PTC. An obsolete or defective version of ptc_d.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 ptc_d.exe PTC L-03 licensing daemon

ptc_d.exe is not part of Windows, but it is important nonetheless. The file ptc_d.exe is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 716,800 bytes (40% of all these files), 811,008 bytes, 2,039,296 bytes or, as the case may be, 1,527,808 bytes.
The file does not contain any exact product information, as would normally be expected today. The program executes in the background, and can only be terminated using Windows Task Manager. This ptc_d.exe process can initiate a network connection--either to the Internet or on your LAN. The ptc_d file was developed by a so-called third party provider - and not by Microsoft. Ptc_d.exe is capable of modify other Windows tasks as well as supervise programs. For this reason, 72% 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 ptc_d.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 ptc_d?

Part of a cad package for engineering users
Mike Windsor
This program is related to the FlexLM licensing for CAD package, ProEngineer. It is essential for the running of the ProE license server. (further information...)
Edward Carman
I got this process running after installing Pro Engineer Wildfire 3.0 downloaded from a torent file. PTC is the creator of the ProE software. Installation was not successful and I un-installed it. This process cannot be killed in Win Task Manager (it re-appears immediately).
Part of the CPUID program package
Paul
PTC is the Pro/Engineer company. It has something to do with their Licensing package.
This is a license system by LMTOOLS for pro ENGINEER
Craig Milton

Summary: 5 users judge ptc_d.exe to be an essential file that should not be touched. source: file.net

How to uninstall PTC License Server Release or PTC FLEXnet Admin License Server Release

ptc_d.exe PTC L-03 licensing daemon fix

To remove PTC L-03 licensing daemon 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 PTC License Server Release or PTC FLEXnet Admin License Server Release in the list of available programs.
  5. Click Uninstall.

How to tell if ptc_d.exe (PTC L-03 licensing daemon) 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 PTC L-03 licensing daemon. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for PTC L-03 licensing daemon 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 ptc_d.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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