Displays the vendor-specific string that was defined when the project was created. For example, a project created by an Intergraph product, such as Smart Isometrics, has the Source set to Intergraph. The Source string is controlled by the SetSource method as described in the ProjectConfig_<application name>.xml file. For more information, see Configuration Files.
The Source property allows a vendor to judge whether its software can use the project and allows you to identify which projects are created by which vendor software products.
Some products, such as Smart Isometrics and Spoolgen, can share a project.
This property is read-only and cannot be modified.