We just installed Enterprise Guide 7.15 HF2 (7.100.5.6112) (64-bit) on WINDOWS 10.     When first installed .. if user double-clicked .sas program file it would open new EG if not open.  Subsequent .sas double clicks would open program in the then-current Enterprise Guide .   We later came along and installed sas universal viewer   This changed DEFAULT behaviour to open .SAS in the Universal Viewer 1.42.   A user changed back to "Open with" Sas Enterprise Guide.   NOW everytime user double-clicks .SAS a NEW SAS Enterprise Guide session launches... regardless of whether or not one is already open.   How can we change default .SAS double click to recognize when Sas Enterprise Guide is ALREADY open, and just use that sesssion?   Please help.   Thank you! ... View more