Thanks ZackE,   Problem solved with a workaround

Maybe I mis-stated my problem earlier. I'm using a legacy version, QB2016Pro desktop, MSWord not installed.  My computer and installed QB prints just fine.  But when attempting to print envelopes (Company, Prepare Letters with Envelopes), QB stops when it does not find MSWord.  No other options to go around the Warning, just back or close.  

So I continued to search and found the article on Packing slips, which suits my need almost perfectly.  Still does not print directly to envelopes, but including a packing slip in my two window envelopes gets the job done. Thanks for your help!