On Sat, Apr 28, 2012 at 3:58 PM, Ray Holme <rayholme@xxxxxxxxx> wrote: > Just for the record, the command line switches are the latest I have tried and I have tried the simple ones. > > There is an article on the net that I got this set from (without understanding what they are supposed to do). Here is the reference: > > > http://www.cygwin.com/cygwin-ug-net/dll.html OK, thanks. It looks like its the minimum steps required to build a Windows DLL. Its unfortunate the project do not address Windows platform security. I would encourage you to use Visual Studio. Its the right tool for the job on the Windows platform. Jeff