How do I disable automatic startup of Viber on booting up?

Please follow these steps to disable viber auto startup.

1. remove any related files in following dir

/Library/StartupItems

/Library/LaunchAgents

/Library/LaunchDaemons

~/Library/LaunchAgents

~/Library/LaunchDaemons

2. remove viber from "system preferences" --> "Users & Groups" --> "Login Items"

3. Open "Terminal" from "Applications" --> "Utilities" --> "Terminal" type following commands

$ launchctl list | grep -i viber

You will see there is an item "com.viber.OSX" there

$ launchctl remove com.viber.OSX

This item will be removed

$ sudo -i (enter your own password to become a root)

# launchctl remove com.viber.OSX (to remove it again)

# launchctl list | grep -i viber (double comfirm there is no viber anymore)

4. Open viber from "Applications" --> "Viber"

5. "Viber" --> "Preferences" --> "Basics" --> disable the "Start viber on system startup" --> "OK"

6. end

these process has been tested and work on 10.8.4