OSDAppChooser works perfectly in my environment.
What u need to do:
1: Create a package with the .exe and the .xml files. You do not have to create a program.
2: You need to create 2 (maybe 3) steps in your OSD tasksequence.
2a: Add a step command line. Type in "OSDAppChooser.exe" and select the package button and add your osdappchosser package.
2b: Add another step after your operating system is installed, called something like OSDAppChooserApps. This time it is "install software". Choose the radio button to install multiple applications and type in "OSDAppChooserApps"
In the beginning i got some errors because we always buy "naked" systems from our vendor. In this case i had to add an "osdappchooser helper hdd". This is because i want to select the software before any other setp has taken place.