FYI: Getting no response here, I asked WriteLog tech support. They said NO, because each program would overwrite the other's registry entries. Jerry W4UK > On 09/28/2021 12:07 PM Jerry Flanders <jeflanders at comcast.net> wrote: >>> I downloaded WL V12.6 yesterday (have not installed yet), but want to keep my old V11.30 running for awhile. Can I have them both resident and use one at a time? >> Jerry W4UK > _______________________________________________ > WriteLog mailing list > WriteLog at contesting.com > http://lists.contesting.com/mailman/listinfo/writelog > WriteLog on the web: http://www.writelog.com/