Crayons

Here are the files.

Crayons.jar
Crayons_src.zip

If you just want to run the program, you only need the first one; the second is the source code, for anyone who's curious how it works.

It can be a pain to set up and get connected, but hey, it's free. If it's any help, here are some notes about setting up Java that I wrote for the maze game.

Here's what the readme file looks like.

Crayons is a simple client-server program
for drawing on a whiteboard with crayons.

To start a server, pick a port number
(between 1024 and 65535 inclusive) and do this:

   java -cp Crayons.jar CrayonServer <port>

You should receive a message like this:

   CrayonServer running at <host> ...

You can then start any number of clients.
Using the same host and port numbers, do this:

   java -jar Crayons.jar <host> <port>

This program and its source code are in the
public domain.