It is windows platform. I don't need to execute .class file. I want to run/execute/open the file (.txt, .ram, .mp3) that I transfers to the client machine. And I want to open/play it there.

How do I execute the file using JAVA code. Here is what I am doing... I am transferring the file from machine A to machine B, after the transfer is complete, I would like to open.execute the file. I assume it will use the appropriate application to open/run/execute the file. (ie. Notepad for .txt file, real player for .ram files etc.)

How do I send the file from client1 to server, so that client2 can read that file. while sending from c1 to s, I need to divide the file into packets.