How to Update the installed Window Application

For windows application updates,
no need to re-install application for each update.

there are three solutions

1.
just replace client's exe file with your latest exe.
(basic process for update is to detect the changes and replace with latest one.)

2.
use .net clickOnce feature
step 1 open project properties
step 2 click 'publish' tab
step 3 click 'updates' button
step 4 tick 'the application should check for updates';
step 4.1 other settings as per requirement.
step 4.2 and last, specify update location (specify ftp or http path, where you will upload application updates and client-side the updates will be detected automatically and will be download + the files will also be automatically replaced on specific location. visual.net's clickonce feature serves this facility.)

3.
use custom Auto-update application. check reference given below
http://www.codeproject.com/Articles/19623/Adding-automatic-updates-to-your-program-Part-1


each every method have their own pros-cons.
if you don't have space to upload updates on internet or your client doesn't have internet facility.
and also you don't get updates from your client frequently, then go with first basic method.

simple thing is that,
"just use resources as per requirement and Convenience."

Happy coding!
:)