False positive for Calendar Builder Program

I'm a new user and just installed Webroot Internet Security Complete 2016. During the install process the program identified a software program called "Calendar Builder" as malicious software and removed it from my system.I've been using this program for several years with no problem. It has been checked and rechecked over the years and again today with other antivirus programs, malwarebyes, anti spyware programs, emsisoft and a host of other programs. Webroot says it contained W32.Malware.Gen. I feel this is a false positive.
DeniseG815