Auto Update Program

Hi,I would like to write some code which will allow my program to check if a newer version of the program is available and if it is then download and install it.Can someone provide some pointers on how to go about developing such a thing.Thanks!
[273 byte] By [bce_developera] at [2007-11-26 19:58:25]
# 1
Use Webstart.
CeciNEstPasUnProgrammeura at 2007-7-9 22:54:07 > top of Java-index,Java Essentials,Java Programming...
# 2
Sounds good.Thanks!
bce_developera at 2007-7-9 22:54:07 > top of Java-index,Java Essentials,Java Programming...