Question 1

How to embed a DLL in a Delphi executable using MemoryModule?

Accepted Answer

Load the DLL into a TMemoryStream, then use MemoryLoadLibrary with the stream's memory pointer. The demo project includes examples for both direct and hook-based approaches, ensuring seamless integration.

Question 2

MemoryModule vs standard LoadLibrary in Delphi: which is better?

Accepted Answer

MemoryModule is better for creating standalone executables without external DLLs, simplifying distribution. Standard LoadLibrary is preferable when DLLs are on disk, for system libraries like kernel32.dll, or if you need full Windows API compatibility.

Question 3

Can I use MemoryModule with Lazarus on Linux?

Accepted Answer

No, MemoryModule is Windows-specific as it relies on Windows API for DLL loading. It won't work on Linux or other non-Windows platforms, even with Lazarus.

Question 4

What are the security implications of loading DLLs from memory?

Accepted Answer

Memory loading can bypass some disk-based security checks, potentially useful for embedding trusted DLLs, but it might trigger antivirus flags due to suspicious behavior. Always validate DLL sources to avoid malware risks.

Question 5

How to handle DLL dependencies when using MemoryModule?

Accepted Answer

You must manually embed and load all dependent DLLs in sequence, as the library doesn't automatically resolve dependencies. Use memory streams for each DLL and manage loading order based on their requirements.

Question 6

Is MemoryModule compatible with all third-party DLLs?

Accepted Answer

Most work, but compatibility issues can arise with DLLs having complex initialization, TLS callbacks, or heavy system reliance. Test thoroughly, as mentioned with some Windows libraries being unsupported.

MemoryModule

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