The calmain.exe process is used to install Canon digital camera software and includes some additional configuration options for the devices. The process is considered to be non-essential, but it is advisable not to terminate the application unless it is the cause of the problem. Whenever this file encounters an error, a pop-up system error appears and is associated with the calmain.exe process. The file is not an extremely significant executable file for the computer system; however, it is related with some certain DLL files and can be a critical part for the management of certain programs when they are running. While the calmain.exe does not prove to be significantly risky, it has the potential to provide dangers that can seriously lessen the system’s performance. It is usually installed on PCs that have a digital camera and aids the user’s computer communicate with the Canon digital camera. Removing this program may deter the user from being able to use the digital camera on the user’s computer.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. calmain.exe. is used by Canon Digital Camera, If you shut down calmain.exe, it will likely start again at a later time either after you restart your computer or after an application start. To stop calmain.exe, permanently you need to uninstall the application that runs this process which in this case is Canon Digital Camera, from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed calmain.exe

A process usually a part of an installed application such as Canon Digital Camera, or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if calmain.exe. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that calmain.exe, belongs to, in this case Canon Digital Camera