The hookactivewindow.dll file is the process called HookActiveWindow DLL that is part of the application HookActiveWindow Dynamic Link Library created by ATI Technologies. It is not a core file for Windows. It can record inputs. This program does not use a visible window. A dynamic link library [DLL] file is a program that has functions that can be used by other programs. It may hook itself into other running applications to control or later their behavior. A DLL file has a mechanism for shared code and data that allow a developer to improve the functions of a program without the need to re-link or recompile. This mechanism can also be used by different applications at the same time that means a DLL file can be reused to save disk space and memory. ATI Technologies Inc. is a semi-conductor technology company that specializes in developing chipsets and graphics processing units.

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

A process usually a part of an installed application such as HookActiveWindow DLL, 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 hookactivewindow.dll. 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 hookactivewindow.dll, belongs to, in this case HookActiveWindow DLL