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).
It is located in the Windows folder, but it is not a Windows core file. It is not a Windows core file. Explorer .exe is able to record keyboard and mouse inputs. Important: Some malware camouflages itself as Explorer .exe, particularly when located in the C:\Windows or C:\Windows\System32 folder.