Problems adding C Extentions - Mailing list pgsql-cygwin

I am moving a Postgres application from Linux to Cygwin.  The application
has some Postgres extensions built in C.  I get a clean compile and load,
but when I go to load the functions into Postgres I get a load error.  I
would appreciate any guidance.  Here is the code and error message:

create function RealPct(int4, int4) returns float8
        as '/home/ddonn/stc/model/stcdemo/STCModel.so' language 'c'
with(isStrict);
ERROR:  Load of file /home/ddonn/stc/model/stcdemo/STCModel.so failed:
dlopen: Win32 error 3221225622

Dan Donnelly