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# Open The Solution File

Navigate to the TwsRtdServer source directory and launch the solution file.

This can be found at `{TWS API}\source\CSharpClient\TwsRtdServer\TwsRtdServer.sln`

![Source directory of RTD](/docs/_fern-img/bcf2b3c72f69477c32b8be8747053467a22d243f93acd533e256ea0386f347af.webp)