What is issimsvc.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 issimsvc.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.

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Issimsvc.exe file information

Windows Task Manager with issimsvc
Issimsvc.exe process in Windows Task Manager

The process known as ISSI Service or ISSI EZUpdate Service belongs to software ISSI by IBM (

Description: Issimsvc.exe is not essential for the Windows OS and causes relatively few problems. Issimsvc.exe is located in a subfolder of C:\ (mainly C:\sdwork\). Known file sizes on Windows 10/8/7/XP are 184,048 bytes (40% of all occurrences), 184,088 bytes, 217,600 bytes or 242,928 bytes. 
The program has no file description. The application starts when Windows starts (see Registry key: MACHINE\Run). The file is not a Windows system file. The program has no visible window. The file is digitally signed. Issimsvc.exe is able to monitor applications and hide itself. Therefore the technical security rating is 54% dangerous, but you should also take into account the user reviews.

Recommended: Identify issimsvc.exe related errors

Important: Some malware camouflages itself as issimsvc.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the issimsvc.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.


User Comments

Used internally by IBM for automatic updating of software and microsoft patching
automatically pull internal updates
This part of IBM Standard Software Installer for managing software updates on their internal systems.
ISSI = IBM Software Standard Installer. the process is here to check if an update is available and installed it. Only for people connected to the IBM intranet network.
  French IBMer  
Its a harmless internal IBM program to connect to the IBM Intranet and download software updates automatically.
  An IBM-er   (further information)

Summary: Average user rating of issimsvc.exe: based on 5 votes with 5 user comments. 3 users think issimsvc.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving issimsvc issues

A clean and tidy computer is the key requirement for avoiding problems with issimsvc. 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 issimsvc.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

issimsvc.exe [all]