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.CTSYM File Extension

A .CTSYM file is a Visual Studio Command Table Output File, created by Microsoft.

Open with Microsoft Visual Studio 2022+. Available for Windows.

What is a .CTSYM file?

The .CTSYM file extension refers to a "Visual Studio Command Table Output File" used in conjunction with Microsoft Visual Studio, which is a software development kit (SDK) for the Windows operating system. This type of file is generated by Visual Studio and contains important compiled configuration data that originates from a .CTC file. The data in a .CTSYM file is specifically designed to support a VSPackage command set, which is a set of commands or tools added to Visual Studio.

A VSPackage can be a resource for different types of code files, including managed VSPackage code, native code, or managed satellite DLL (Dynamic Link Library) files. The .CTSYM file is closely associated with a .CTO file, which essentially mirrors the contents and the filename of the .CTSYM file.

To open or work with a .CTSYM file, you need to use Microsoft Visual Studio 2022 or newer versions. This is because these files are specifically formatted to be compatible with the features and functionalities provided in these newer versions of the software.

Additionally, there is a useful process involving both .CTO and .CTSYM files for creating another file type known as .VSCT (Visual Studio Command Table file). To do this, you should first ensure that both the .CTO and .CTSYM files are placed in the same directory. Then, using the Visual Studio Command Prompt, navigate to the directory where these files are located. You can create the .VSCT file by running a specific command that involves the vsct.exe compiler. The command format generally looks like this: `vsct.exe yourfilename.cto yourfilename.vsct -S yourfilename.ctsym`. After running this command, the .VSCT file is created, and you can proceed to edit it using the VSCT Compiler.

This process allows developers to efficiently manage and customize command sets within Visual Studio, enhancing their development environment according to their specific project needs.

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