Visual Basic 2008-2013: Create a 'Check for Updates' Function Using an API/DLL

This is follow up tutorial of previous video I did (link below). So we create a Check for Updates function in our Visual Basic application - but we use a API made by me to make coding it, much easier.

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[Vens]

Guys for this to work do this:
Dim updater As DotNetUpdater.updater = New DotNetUpdater.updater

Instead of just: Dim updater As DotNetUpdater.updater
Because else it takes updater to be "Nothing"

[chpetrou]

Hello can i ask you a question, i want a msg box or a form to show only once when you start the exe application and then do not appear again, like the check box that you click to not display a message again. can you help me? 

[chpetrou]

please help also i did this with the update and i have written the drop box link and the same version as the version on notepad but it keep displaying update available can you help me?

[demoaerohive]

Hello, the updater is working fine. the only thing is : can you protect against downgrade?
If now you have version 1.0.0.1 on the dropbox and you put in the program 1.0.0.5, it still says update available while you are downgrading.
Regards
Geert