What do you mean by that?
FileMaker does not need to know where the actual application file is located and this is not something you can specify in FIleMaker.
I deleted Adobe reader off of my computer. When I tried to view a container field with a pdf in it, a screen came up that asked me where it could find either reader or acrobat. I skipped over it and didn't enter anything. Now the layout is empty where once a pdf showed up. Im using the trial version of 13. I decided to try the same app in FM 12 only this time when the location request screen came up I directed it to the Adobe Acrobat program on my computer and the pdf now shows up. So my question is how do I get the pdf to show up when I run the app under 13?
And What OS are you using?