Visual Studio Team Explorer can't properly open a PDF file - Solution Explorer not available for "open with" setting
tfs, visual-studio
Solution
If you've got a PDF file in a project you can right-click in the solution explorer and choose "Open with..". Now you can choose which editor you want to use. If Acrobat isn't already listed you can add it and after that click the button "Set as default". After that, your PDF's will always open with Acrobat Reader regardless if you open it from source control browser or elsewhere in the Visual Studio. But you need to configure that for all your Studios.
Reference: Answer in MSDN "Source Control Explorer Doesn't View PDF Files"
Problem
We have PDF (and other) files attached to TFS Work Items and in Source Control under TFS. They are not opened correctly (they show up as ASCII, basically) in Visual Studio. The problem seems to be that until you use the 'Open With..' dialog from the Solution Explorer, VS doesn't properly associate a program with extensions like '.pdf'. If our users had a full installation of Visual Studio, that would be an ok work-around. However, many of them only have Visual Studio 2013 with the Team Explorer component - no Solution Explorer at all. I'm guessing that there must be some workaround for this case. Perhaps setting the proper registry value? Since VS properly remembers the association if you can tell it (through the Solution Explorer), it must be stored somewhere. Ideas? Suggestions?