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Something strange is happening, I am running the game "Sheep dog 'n' wolf" via the SheepD3D.exe executable.

While it is running I alt-tab and open SysInternals' Process Explorer (latest version). The executable is nowhere to be found. Filtering by its name yields no results. I can't drag the "find window's process" crosshair over it, since it's so old it can only run in full screen.

However, when I open Process Hacker, the executable is plainly visible there: enter image description here

controversly: enter image description here

Why ProcExp can't see the exe?

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  • This game is so old there is little information about it. That may be why PE does not see it. I cannot think of any other reason
    – anon
    Commented Apr 13 at 20:58
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    Is the old SheepD3D.exe running in some Windows Application compatibility mode? Windows 10 show all application compatibility settings in effect for running program has a suggestion to use Process Hacker to look at the value of the __COMPAT_LAYER environment variable. That might help understand why Process Explorer doesn't detect the old program. Understanding Shims might help in explaining how Windows Application compatibility mode works.
    – Chester Gillon
    Commented Apr 13 at 21:03
  • @ChesterGillon, I've yet to read about shims, but, yes, the __COMPAT_LAYER env var has a value of DWM8And16BitMitigation for that application. I take it ProcExp can't see processes with that compatability?
    – user107586
    Commented Apr 14 at 15:07

1 Answer 1

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I am able to see SheepD3D.exe in Process Explorer 17.5 on Windows 11 23H2 using the same Sheep filter.

Ideas

  • Maybe SheepD3D.exe is running as a different user than Process Explorer is, and View > Show Processes From All Users is disabled?
  • Process Explorer might be paused, giving you an outdated view of running processes. If so, the status bar will show "Paused". Press Space to toggle.

Process Explorer

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  • Thank you for procuring a copy of the program to test! Show Processes From All Users is enabled and ProcExp is not paused. Does yours run in a compatibility mode?
    – user107586
    Commented Apr 15 at 13:51
  • The only compatibility mode I use for Process Explorer is "Run this program as an administrator," purely for convenience. SHEEPD3D's __COMPAT_LAYER env var is the same DWM8And16BitMitigation value you saw, I didn't see or enable any others.
    – Ben Hutchison
    Commented Apr 15 at 17:19

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