# Using DLL in Rust
## CP210x
1) Download and install `CP210x_Windows.exe`
2) Go to directory `C:\SiliconLabs\MCU\CP210x_SDK\Customization\AN721SW_Windows\CP210x_InterfaceLibrary`
3) Copy `ManufacturingDLL` and `RuntimeDLL`, then paste in `Rust-Project/src/dlls`.