I have installed ActivePerl 5.8.8 on my PC (c:\Perl). I need to write perl script to send command to my Serial Port. So I also downloaded SerialPort-0.19 whcih contain the SerialPort.pm. But I do not know how to install this package to my existing c:\Perl\lib. It is not work for me if just simple copy the .pm to the C:\Perl\lib\Win32 directory. It complain my script in "use Win32:API". I also downloaded API.pm (Win32-API-0.20). I have no idea to config it right. I am running in Windows "cmd" shell.