How do you get Winpilot aviation database changed?

My Winpilot aviation database shows an airport that does not exist
adjacent to our actual airport. It also does not show a public airport
with 7,700' gravel runway 25 miles away. Does anyone know how to submit
changes to the aviation database? Only user waypoints can be edited in
Winpilot.
The airports referred to a CMRS adjacent to Harriet Alexander in
Salida, CO and Saguache Munincipal at Saquache, CO.
I can only imagine there are many other inaccuracies across the country
which could present problems for visiting pilots unfamilar with the
local territory.

Randy