Windows 7 - Changing box option from "All supported types" to "All files?"

Hey everyone, I made the switch from XP to 7 recently and there's one thing that has been bugging me. I use foobar to play my audio files and I have them archived in .zip files. On XP I could open a folder and add the files rather easily as "All files" was the default option and foobar would see the zip files, but for some reason it's different with 7. I have "All supported types" set as default and that means I have to use the pull down menu to select "All files" so my .zip files could appear which then lets me pick the files I want to play. Is there a way to change this?

Here are pictures of what I'm talking about:



"All supported types" is set by default.



I have to select "All files" so that the .zip files can appear.



I would like for "All files" to be the default option like it was in XP. Is there a way to change this?