Great tool! One caveat: binaries built with newer versions of Rust end up depending on CoTaskMemFree from combase.dll

[z16166]

Here’s my setup (using the latest Rust 2024 edition):

https://github.com/Chuyu-Team/VC-LTL5/releases/download/v5.3.1/VC-LTL-Binary.7z
https://github.com/Chuyu-Team/YY-Thunks/releases/download/v1.2.1-Beta.2/YY-Thunks-Lib.zip
https://github.com/Chuyu-Team/YY-Thunks/releases/download/v1.2.1-Beta.2/YY-Thunks-Objs.zip

cargo install thunk-cli

set VC_LTL=f:\win7\VC-LTL5
set YY_THUNKS=f:\win7\YY-Thunks

thunk --os win7 --arch x64 -- --release

The compiled .exe ends up importing CoTaskMemFree from combase.dll, which prevents it from running on Windows 7 x64.

Workaround

Create a combase.c file with the following content:

#pragma comment(linker, "/export:CoTaskMemFree=ole32.CoTaskMemFree")

Then open a Visual Studio x64 Native Tools Prompt and build a stub combase.dll:

cl.exe /LD combase.c /link /NODEFAULTLIB /NOENTRY /out:combase.dll

Place the generated combase.dll in the same directory as exe, and it should run fine on Windows 7 x64.

Note: Some antivirus software may flag this DLL. You can safely ignore it or add an exception.