The command net send is used to send a message globally or to a specific user. I did have to play a little with escapes and quotations to get the Windows commands to execute properly from within bash scripts. Capabilities such as rlogin are also provided. Combined, these tools make it possible to do system administration of Windows platforms remotely. A slight change in Windows pathing corrected my syntax problem.
Most administrators have a favorite scripting language and set of power tools.
Cygwin scripting languages include bash, ksh and tcsh. I also found both the vim and xemacs editors. I got a strange behavior with xemacs, though. The xemacs file-open menu option caused a dialog box to appear momentarily. All other xemacs menu options seemed to behave normally, as did the traditional Ctrl keyboard commands.