How to pause / resume any external process under Windows?

If you "debug the debugger" (for instance, using logger.exe to trace all API calls made by windbg.exe), it appears that the debugger uses SuspendThread()/ResumeThread() to suspend all of the threads in the process being debugged.

PsSuspend may use a different way of suspending processes (I'm not sure), but it is still possible to hang other processes: if the process you're suspending is holding a shared synchronization object that is needed by another process, you may block that other process from making any progress. If both programs are well-written, they should recover when you resume the one that you suspended, but not all programs are well-written. And if this causes your program that is doing the suspending to hang, then you have a deadlock.

I'm not sure if this does the job, but with ProcessExplorer from MS Systernals you can suspend a process.

It's been said here: https://superuser.com/a/155263 and I found it there too.

read here and you also have psutil for python that you can use it like that:

>>> import psutil>>> pid = 7012>>> p = psutil.Process(pid)>>> p.suspend()>>> p.resume()