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What does the portmap.exe file do?

The portmap.exe process is also known as Creo 2.0 from PTC or, as the case may be, ONC/RPC Portmap service for NT and is a part of PTC Portmapper or, as the case may be, ONC/RPC Portmap Service/NT. This software is produced by PTC. An obsolete or defective version of portmap.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 portmap.exe Creo 2.0 from PTC

portmap.exe is not part of Windows, but it is important nonetheless. Portmap.exe is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 677,376 bytes (33% of all these files), 676,864 bytes, 711,680 bytes, 9,728 bytes or, as the case may be, 49,152 bytes.
This file does not supply any version information or other description. This portmap.exe process does not appear as a visible window, but only in Task Manager. It does not come from Microsoft and is not part of the operating system. This file has hidden itself from your anti-virus software. Portmap.exe is capable of supervise programs. For this reason, 85% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

A portmap.exe file has a 90% certainty of being dangerous if it is found in the C:\Windows\System32 directory. In this case, the file size is usually 45,056 bytes. There is no internal description of the file. It is interesting to note that the file is placed in the Windows folder, even though it is not part of the operating system. The program executes in the background, and can only be terminated using Windows Task Manager. The application is receiving or sending data on the LAN (your local network) or on the Internet. The portmap file is not part of the Windows operating system.

A portmap.exe file has a 72% certainty of being dangerous if it is found in a subdirectory of C:\Windows. In this case, the file size is usually 45,056 bytes. There is no embedded description in this file. These days, this is rather unusual It can be found in the Windows folder; however, it is not a Windows system file. The application does not have a visible window, and does not appear on the taskbar. Portmap.exe is no part of Microsoft Windows.

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 portmap.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 portmap?

If you have QLogic FC-HBAs the file is found in Program Files\QLogic Corporation\SANsurfer and is essential for use with your Fibre Channel Host Bus Adapters.
Andreas Dully
is installed or executed by Winshape, simulation software by Heidenhein
Rohde & Schwarz process, needed for remote controle of R&S Measurement Equipment (Professionnal Applications)

Summary: One user judges portmap.exe to be an essential file that should not be touched. One user considers it harmless. source: file.net

How to uninstall PTC Portmapper or ONC/RPC Portmap Service/NT

To remove Creo 2.0 from PTC from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate PTC Portmapper or ONC/RPC Portmap Service/NT in the list of displayed applications.
  5. Click the program, and then click Uninstall.
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portmap.exe Creo 2.0 from PTC fix

How to tell if portmap.exe (Creo 2.0 from PTC) 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 Creo 2.0 from PTC. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Creo 2.0 from PTC 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 portmap.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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