Where Can I Find SX2 .exe??

Hi Cubase users
I inadvertently deleted my Cubase SX2 .exe file. I unfortunately do not have my back up, or master copy. Over the years I’ve commited myself to this version, and have grown quite fond of it. I have Cube 5, but it doesn’t read programs and files from SX2. All could be solved with a Cubase SX2.exe file. I feel it’s a long shot…but know one would understand more then the folks on this form. If anyone can assist - saying I’m greatly appreciative is an understatement!!! Please help!!!