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Use the Application page of the Visual Studio Project Designer to configure application settings for the project.
To access this page, select a project node in Solution Explorer, and then select Project > Properties. In Project Designer, select the Application tab.
Specifies the name of the executable (DBR), executable library (ELB), or object library (OLB) to be created. The default name is the project name, and the default extension (.dbr, .elb, or .olb) is determined by the output type.
This option is not available for multiple mainline projects. Output files for these projects are named for their source files.
Specifies the working directory for compiler commands. By default, this is the object folder (obj) folder for the project. You can use an environment variable in this field (e.g., SRC:) if the environment variable is defined on the Common Properties page or the Environment Variables page of Project Designer.
Note that if your code files have INCLUDE statements that don't specify a path, you'll need to set the Working directory option to the directory with the included files. For example, if you have the include statement "INCLUDE fred.def", you'll need to set the Working directory option to the directory with fred.def.
Specifies application type: Application, Executable Library, Object Library, or Mainline Project. The default depends on the project type.
For Multiple Mainline projects, the Startup object field determines which mainline is used as the starting point when you select a Visual Studio debug or run option—e.g., Start Debugging or Start Without Debugging. A change made to this setting will be saved to a .synproj.user file, which is specific to the machine. (The default setting is stored in the .synproj project file.)
You can also set this by right-clicking a source file in Solution Explorer and selecting Set as Startup Object from the context menu.