Very likely any motor from a 1995 through 1998 Windstar will work.
A great source, not only of parts, but of compatibility information, is your local auto salvage/junk yard.
See "Related Questions" below for more
Depending what year your windstar is, it may have rivets holding the window to the motor. You have to drill them out to detach the window. I removed the motor and regulator and pulled the window up and propped it with wood until my motor came in. Now they have the motor/regulator combo aftermarket at Autozone for $69.
I need to know the best way to remove and install the new window motor for a 96 Ford Windstar drivers side. Ray
There are a few "power motors" on a Windstar. Guessing the question might be referring to the window motor, see 'Related Questions" below for specifics about those...
Yes
A switchThe window motorThe window motor fuse(s)See "Related Questions" below for more
There are 2 wiper motors on a Windstar: 1 for the front wipers and 1 for the rear.
The motor and/or window regulator may need fixing or replacing. See "Related Questions" below for more
Since the Freestar is just a Windstar with a different name, try the "Related Question" below for getting started with replacing the window motor.
Luckily these window motors are widely available from any auto parts supply retailer.RockAuto.com and Autozone have motors ranging from $38-100.Be sure to review the "Related Questions" for much more about Windstar power windows
Check the wires to the window motor. The window motor may have a loose wire or the motor may need to be replaced.
Breaking this question into the 2 primary components: how to remove the door panel - and - how to replace the window motor. Both are well covered in the "Related Questions" below
Begin by removing the 1994 Chevy passenger side door panel. Remove the window motor wiring harness. Remove the window motor linkage. Remove the window motor retaining bolts. Reverse the process to install the new window motor.