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Editorial Team
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Asked: 2026-05-28T04:09:17+00:00

I’m trying to launch or access a minesweeper instance to hook and call it’s

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I’m trying to launch or access a minesweeper instance to hook and call it’s functions on demand to play a bit and to create a solver. I’ve tried two ways: launching a process with it, and injecting a dll of mine in it with a method found online. Both ended up in the same problem: I get error 998 when I access the memory of the library of minesweeper from my program or my injected library. What do you recommend me to do? I don’t know much of the Windows API so I don’t know if the problem is on the methods I’m using or if I have to do some extra function calling or changing some settings.

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  1. Editorial Team

    Your problem is most likely that you are trying to write to the memory of the target without changing the page protection. Executable pages are typically read-only (and executable). You need to use VirtualProtect to change this protection. Usually, this sort of code would be executed:

    DWORD flOldProtect;

VirtualProtect((LPVOID)from, 5, PAGE_EXECUTE_READWRITE, &flOldProtect);
...
VirtualProtect((LPVOID)from, 5, flOldProtect, &flOldProtect);

    This code changes the protection so you can write to it. You would perform your hooking code, etc. within ... and then restore the page protection. Here is a really basic trainer I wrote for someone a while ago which works via DLL injection.

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