Companies love freeware but you've either got to say no to them, or allow them to .msi up the file and use it until the next major revision.
This makes a lot of sense. "Corporate IT Departments click here to request your free non-expiring corporate license".
Somebody in IT fills out a form, submits it to DC, some kind of approval cycle happens, and they get an email with a link to a downloadable version of the requested app, ready to use without a key.
As a special bonus the name of the company is displayed in a startup splash screen, with a special "Thank you from Donation Coder" message and in invitation from users to click Help inside the program to learn how to obtain their own, free copy.
It'd mean some work to manage these requests (and recompile each time, or engineer a new "corporate" mechanism, or something else) but until it's known how many corporations would take advantage of such a thing, it's hard to say if the juice is worth the squeeze. If mouser gets bombed with 500 requests a month that'd be undesireable; but what if it's 1 or 2?
Interesting idea, regardless.
And it's fun to see a 2-year-old thread come back to life. They're sometimes a handful at that age. :-)