Can't load sybase.dll DBD::Sybase

I have some problems with using DBD::Sybase. At first I couldn't run make successfully but after few tries I managed to do it. Now I have problem with this message : install_driver(Sybase) failed: Can't load '/usr/lib/perl5/site_perl/5.8/cygwin/auto/DBD/Sybase/Sybase.dll' for module DBD::Sybase:

Re: Can't load sybase.dll DBD::Sybase

This is installation process of DBD::Sybase (I installed DBI before DBD::Sybase) $ perl Makefile.PL Unknown Client Library version - assuming FreeTDS. By default DBD::Sybase 1.05 and later use the 'CHAINED' mode (where available) when 'AutoCommit' is turned off. Versions 1.04 and older