AppleScript Addendum
To check if AppleScript works on this way, I built a corresponding test scenario. Here I use the same approach with an editor to develop Invoke Code Activities, but not so comfortable.
After compiling, I run the program and all works as expected.
Conclusion
The method Process.Start of the System.Diagnostic namespace is, as far as one can tell, a very universal approach with which integration scenarios can be developed very easily. We have seen this in the Windows, Linux and Mac OS X context. Cross-platform Custom Activities, that have this in focus, should be very easy to create. We will see …