The Open Project command allows you to open a new current project. It first closes the existing current project, if any, since Source Insight only allows one project open at a time.
You can also open a project by dragging a project file (.PR) from Windows Explorer onto the Source Insight window, or specifying a project file in the Open dialog.
Type the name, or part of the name, of the project you would like to select.
Displays a list of all the projects you have created or opened on your machine. Select the project you want to open here. This list is simply a recording of known projects. You may have other projects that are not listed here. To open those, click the Browse button and locate the project file.
Click this button to bring up the standard Open dialog box, which allows you to browse around your disks. Locate a project file with a .PR extension. Once you select a file and close the Open dialog box, the file you selected will be loaded into the Project Name text box. Then click OK to open it.