You're my new God, Quigibo...
Though when I click you're file, I get the following:
---copying file *myProgName*.z80----
Unable to find the given Pad (<-- not exactly what it says, sorry, my error is in Dutch, and I can't translate it well)
---assembling *MyProgName*.z80----
Unable to find the given Pad (same error as above)
Could be something with the header, what exactly do you mean with *You also need a special header for the app.*
How should the header look like?