What Files Should You Add to a Project?
Source Insight projects should consist of program source files and text files only. It doesn’t make any sense to add a binary format file to a Source Insight project. For example, adding an EXE file to your project would have no benefit.
The document types that are defined by default correspond to the types of source files you probably want to use with Source Insight. Normally, only those types of files should be added to a project.
The Document Options dialog box contains the check box: Include when adding to projects. You can use this check box to control what file types Source Insight will automatically add to your project, or what file types will be displayed in the list box in the Add and Remove Project Files dialog box.