I have attached the win31cae.zip
I have the version 5.2 cae running on Win-OS2 and I have not seen any Win32s errors. Although I have seen Win32s 1.25 v 1.30 errors in the past when I wasn't careful with the v 1.25 to v 1.30 conversion.
As you probably know v 2.x cae will only work with DB2 server versions 2, 5.x, 6.x; it will not work with DB2 server version 7 - because of IBM's dumb 2 version difference rule.
Version 5.2 Win3.1 cae will work, but it has issues with ODBC. Mainly - if you do not connect to your database with the comand line processor or client setup BEFORE attempting to connect through ODBC you will get a strange error about stack overflow. If you connect, say with the command line processor in windows and just leave the CLP open, you can then connect and run with ODBC.
Hope this helps