Is there any software out there that will allow for printing addresses
and return addresses on smaller envelopes (4 1/2" x 5 1/2" or smaller)? MS Word
will not allow this small of an envelope and Stamps.com wants a
monthly fee. Thanks

How dumb of MS. You may know this -- as long as you can set the guides
on your printer small enough, set up the ?File, Page Setup? to your
envelope size and align the address on the page as reqd. Won?t know
it?s an envelope of course but doesn?t matter.

Best