There are 2 pints in 1 quart, so there will be 3 pints in 1 and 1/2 quarts.
Hi Niki, I understand that Windows Reader is the default Viewer for PDF files. What I was asking was how this was stored in the registry. The key HKEY_CLASSES_ROOT\.pdf key has (Default) = AcroExch.Document (if you have Acrobat Reader installed). In Windows 8 the .pdf key has (Default) =  (blank).
Did someone email you a KEY file and you're not sure how to open it? Maybe you have found a KEY file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a KEY file related error message. Before you can open a KEY file, you'll need to figure out what kind of file the KEY file extension refers to. Tip: Incorrect KEY file association errors can be a symptom of other underlying issues within your Windows operating system.