I know that your are working for the new association module. Thats why I will not write you to fix the PortableFileAssociator. But please fix them for the new module.
Windows 8 ask to user with which app the user wants to start(run) the file. This question is asking just for the FIRST time for each format (extension of file). Please make something to do not ask this question. Because each time I restart the PortableFileAssociator (and re-press the "Add file associations" button) windows 8 asks me this question for each file.
Also please read this for the file associaton problem on Windows 7+ : https://portableapps.com/node/34578
I just want to notice...