The JWA library aims to provide a conversion from C to Delphi of as many headers as possible from the PSDK etc. The JWSCL (security library) is an advanced object-oriented framework for programming with the Windows security features (ACL, Tokens, etc.)
SeamlessRDP is an implementation of seamless windows server components for rdesktop based on code contributed by Cendio AB http://www.cendio.com/seamlessrdp/ . In seamless mode, rdesktop creates a X11 window for each window on the server side.