Prevent program freeze

Whenever I open my custom browser
my program freezes untill the loading has finished.

Is this normal?
And if it is then how can I prevent my program from not allowing me to go back to the other form untill the loading has completed?

I'm using this url as a start up page for my custom browser;
http://www.runescape.com/game.ws

it links directly to a java-based game.
when the game loads it checks for updates etc ( java app )

so can I prevent my program from freezing or not ?
It looks as if my custom browser form keeps demanding focus ..
Not that I'm able to change it by clicking..
I can at most make my program create the msg:
Not responding..
if I click on the browser form while loading.
If I wait it loads in about 10-15 seconds.

Look up multithreading. You need to throw the code that loads your stuff into it's own thread so it doesn't freeze your UI while it runs.

Okay will do thanks ;)

.. Code:

Public Class Browser
    Public thread As System.Threading.Thread
 
    Private Sub Browser_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim thread As New System.Threading.Thread(AddressOf DoCode)
        Do While WebBrowser1.ReadyState <> WebBrowserReadyState.Complete
            thread.Start()
        Loop
    End Sub
 
    Public Sub DoCode()
        WebBrowser1.Navigate("http://www.runescape.com/game.ws")
    End Sub
 
End Class

Now I looked up threading etc..
I tried the backgroundworker and threading and neither of them solved my problem..
So either I'm doing this wrong or it's something else x(

Code:

---

    Dim MyThread As System.Threading.Thread
    Dim frmTest As New Form
    Dim Browser As New WebBrowser

    Public Sub DoLaunch()
        frmTest.Height = 778
        frmTest.Width = 712
        frmTest.Controls.Add(Browser)
        Browser.Dock = DockStyle.Fill
        Browser.ScrollBarsEnabled = False
        Browser.Navigate("http://www.runescape.com/game.ws")
        frmTest.Show()
    End Sub

    Private Sub btnPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlay.Click
        MyThread = New System.Threading.Thread(AddressOf DoLaunch)
        MyThread.Start()
    End Sub

---

I figured that to launch my thread correctly I'd have to put all the code in 1 thread. So instead of using a premade form I started off fresh.
But now I get the following error and I can't make sense of the online solutions .. :s

error:Unable to get the window handle for the 'WebBrowser' control. Windowless ActiveX controls are not supported.

You don't need multi-threading, nor would it work in this situation.
All you need is to use the events correctly.

This is what you should do:
1. Navigate to the page of your interest.
2. Use the WebBrowser DocumentCompleted event to determine when the webpage has loaded fully and take whatever action you want to based on that.