What is Issch.exe

ISUSScheduler - InstallShield Update Service - InstallShield Software Corporation

File description

Issch.exe with description ISUSScheduler is a process file from company InstallShield Software Corporation belonging to product InstallShield Update Service.
The file is digitally signed from Macrovision Corporation - VeriSign Time Stamping Services Signer
We do not recommend removing digitally signed files from Macrovision Corporation

What is issch.exe?
This process is the InstallShield Scheduler, which is installed as a part of InstallShield. It comes with a wide variety of programs (any program whose installer is the InstallShield Wizard). Its purpose is to facilitate automatic updates of the software with which this process was installed.

This process is not essential to the operation of the system but should not be terminated unless necessary. Terminating the process will stop a check for software updates. Removing the process may have unintended consequences including rendering any software that installed this executable inoperable.

Dangers of issch
As this is a process that runs on almost every system (as most systems have at least one program that used an InstallShield installer), it is possible for virus writers and spyware vendors to disguise their malware as the genuine one.

Some malicious files may have the same name as this but be stored somewhere other than in %ProgramFiles%\Common Files\InstallShield\UpdateService. Other malware may use a name that appears similar to that of the legitimate one but with slight differences in spelling or with appended digits. While there are currently no known viruses, Trojans, or adware applications that disguise themselves as this process, you should look out for the presence of this file in an incorrect location or with a slightly different name.

There will typically be only one instance of this process running at a given time on a system. The presence of multiple instances may be an indicator of a malware infection. If you do not have any software installed which used an InstallShield installer (this is very unlikely), the presence of this process may be an indicator of a malware infection.

Common problems
  • There are no common problems that are known to be associated with this process. Despite this, if issch.exe causes problems for you, it should be safe to terminate. Otherwise, it is safe to leave this process as it is.

Automatic startup locations

001 Running Processes
002 Autorun registry entries local machine
003 Autorun registry entries Current User

Digital signatures found for this file

3 Macrovision Corporation - VeriSign Time Stamping Services Signer
2 Acresso Software Inc. - VeriSign Time Stamping Services Signer - G2

MD5 security rating in our database

42 files (Not yet rated and not signed)
3 files (Safe and not signed)
5 files (Safe and digitally signed)
Some versions of this filename have not yet been checked for safety.
Warning: Some malware might rename itself to issch.exe. Always make sure that your file is from a verified publisher.

User ratings for this file

File rating: Average rating of issch.exe: by 50 files and users.

Application errors

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