/DebugExe (devenv.exe)
Opens the specified executable file to be debugged.
Devenv /debugexe ExecutableFile
Arguments
ExecutableFile
Required. The path and file name of an .exe file.If the .exe file is not found or does not exist, no warning or error is displayed and Visual Studio starts normally.
Remarks
Any strings following the ExecutableFile parameter are passed to that file as arguments.
Example
The following example opens the file MyApplication.exe for debugging.
Devenv.exe /debugexe MyApplication.exe