A collection of applications

I am writing a main EXE that will have buttons on it to access other, individual EXEs that I created, along with a couple other applications. For the ones I create, how do I do this:
On the main app you enter a persons name.
Then you need to use one of these other applications that I wrote, so you click the button to start it.
How do I get the name, lets say called strName, into the other application. Well call the one Main.exe, and the other Tool.exe.
[468 byte] By [jeffcravener] at [2007-11-17 14:49:40]