What is ismserv.exe?
The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the ismserv.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.
Ismserv.exe file information
The process known as Windows NT Intersite Messaging Service belongs to software Microsoft Windows Operating System or Betriebssystem Microsoft Windows by Microsoft (www.microsoft.com).
Description: The original ismserv.exe is an important part of Windows and rarely causes problems. The ismserv.exe file is located in the C:\Windows\System32 folder.
Known file sizes on Windows 10/8/7/XP are 40,448 bytes (50% of all occurrences) or 49,152 bytes. 
The file is a Windows system file. The program has no visible window. The file is a trustworthy file from Microsoft.
Therefore the technical security rating is 4% dangerous, however you should also read the user reviews.
Recommended: Identify ismserv.exe related errors
Important: Some malware disguises itself as ismserv.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the ismserv.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
Best practices for resolving ismserv issues
A clean and tidy computer is the key requirement for avoiding problems with ismserv. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.
Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To help you analyze the ismserv.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
Other processes
openwide.exe fighters10119tray.exe wmiprov.exe mcwelcom.exe ismserv.exe pmc.service.main.exe clamsentinel.exe eie11_en-us_wol_win7.exe vpwalletservice.exe avmailc7.exe wnfuldtk.exe [all]
Score
User Comments
Mike
Summary: Average user rating of ismserv.exe: based on 1 vote with 1 user comment. One user thinks ismserv.exe is essential for Windows or an installed application.