>I want to add the option to my users of downloading a newer version of my program and over writing the current version with the new one but windows won't allow me to copy over a program while it is running.
>The idea is for the program to check for updates, download the update and then copy it over the older version.

John,

There's no way an exe can overwrite itself

A couple of possibilities
(1) Download the new version, exec another program that copies the downloaded exe over the old, then exec your program again
The exec can be done in foxpro - but you have to write some code
It can also be done with vb scripting - see parts of http://www.west-wind.com/presentations/wwCodeUpdate/codeupdate.asp

(2) not tested - you could use a .App file to download
Your exe

....

do while TRUE
    do xxxx.App
    if( new version )
         clear program
         copy ....app to xxxx.app
        loop
     endif

  exit
enddo