This is the user-mode portion of the Win32 subsystem (with Win32being the kernel-mode portion).Csrss stands for client/server run-time subsystem and is an essential subsystem that must be running at all times.
Quoting from that link: I created this problem when I added a new setup project to the solution, and then added files directly from the /bin/release folder of the main application project to the application files folder of the setup project.
Csrss is responsible for console windows, creating and/or deleting threads, and implementing some portions of the 16-bit virtual MS-DOS environment.
The file is located in the folder C:\Windows\System32. E My machine was hacked by someone who put a bogus hidden copy of a spyware program into my System32\dllcache directory.
This is the user-mode portion of the Win32 subsystem; Win32is the kernel-mode portion.
Csrss stands for Client/Server Run-Time Subsystem, and is an essential subsystem that must be running at all times.