Deployment Synchronisation..Please Help

I have a project in the server that still needs regular updates.I am using my PC as a deployment centre,and then distributing it to the other users by re-running the setup.exe file in each client PC(about 40 of them).Which means everytime i do updates to the project ,I will have to rebuild both the solution and setup projects in my PC and re run setups in the clients PCs.How can I synchronise this repititive and tiring job??I mean update should be done only once centrally....without disturbing the users....
Please help

If you have not added any references or components to your application then you only need to redistribute the exe. You could place this file on the network and have you app automatically check to see if this file is an updated version and if so copy it to the user's pc. That will be the extent of your update.

What setup app are you currently using?

I have created a setup project ( window installer) in my main project.Hence am using it to redistribute to other users ,everytime i do updates I have to rerun setup.Any other way around??

If you have not added any new references or components all you need to re-distribute is the exe for an update.