Since http://www.smorgasbordet.com/pellesc/ seems to be offline, you can find the Download of Pelles C here in this Forum.
PellesC Version 12.00May 19, 2023For 64-bit Windows 7/8/10 host, targeting 32-bit or 64-bit Windows Vista/7/8/10. New( Should work on Windows 11 too, but I have no means to verify that... )