I remember that at the time of installation, Directory Opus had asked and I had instructed Directory Opus to leave the management of zip files, image files etc. to existing applications associated with these files, names of some of which Directory Opus showed to me. (e.g. I use WinRar for zip files etc.). If I remember it right, it had even asked for FTP association.
Now I cannot find it in Settings or Preferences even after searching quite some time in documentation and within Preferences
Can someone point to me as to where does Directory Opus store the above information related to integration with different tasks either with Directory Opus or with external programs within Preferences.