- Open your library project options
- On left side go to Build->Output
- Output path: set to path where external application will load your dll
- On left side go to Run->Custom Commands
- In dropdown box with text (Select a project operation) change to "Execute"
- In Command textbox set to external executable that loads your dll
Now you can right click on your library project in SoltuionPad and set "Set As Startup Project"