CRT-free DLL (optional)

Some courses end with a DLL that minimizes or avoids the C runtime, walks InMemoryOrderModuleList, and compares hashes—similar ideas to earlier chapters but with DllMain constraints.

Note

This is supplementary. Building DLLs involves exports, DllMain, loader lock re-entrancy, and special linker settings. Follow your instructor’s template and checklist.

Warning

Calling LoadLibrary-style APIs from DllMain while holding the loader lock can deadlock. Do not copy PEB-walking samples into DllMain without understanding what your init path calls.

What to implement (if assigned)

• A DllMain that does minimal work (or defers heavy work per instructor guidance).
• Optional export boo or similar that performs module enumeration / hash match outside dangerous lock contexts.
• Linker settings and CRT avoidance exactly as the Classroom boilerplate specifies.

Implement

1. Use only the DLL project and settings from your Classroom template.
2. Build the DLL, load/test per rubric, commit, and push.