[.net] Getting HTML form data using VB

You really have to be more specific. Are you doing this through ASP.NET? If that is the case, don't use an HTML input box specifically (it is doable, but not recommended).

create a new webform (aspx), draw your input box on it, edit the properties to give the box a meaningful ID and empty out the text. I assume you're getting the text when you click a button, so draw your button on the form and edit its properties as well. Double click the button and a code editor will come up for the Click event of the button. You can then get the text from the input box as inputBoxName.Text

if you're talking about vbscript, then no clue.

My program in VB opens up my .html page containing my &#106avascript program in a web control but then is what i want it to do is wen you click a certain button in my VB application it will extract the data from within a textarea from my .html page is this possible to do? this is all client side.

not without some major hackery that you are not ready for.