Cant open need setup.msi 3x suite

HELP  I killed a virus on my computer and then went to open Corel I got the error message, cant find the file setup.msi.  My setup disc is missing I have a back up disc and the program cant find Setup.msi.  My Corel 3x Suite does not open.  Can someone send setup. msi to me and is that a way to correct that problem?  Anyone have a solution to this problem, because I cant open my 3x.