Type 'Framework.Controls.XpProgressBar' is not defined

I have to understand existing code written in VB.net. In one of file I am getting error

"Type 'Framework.Controls.XpProgressBar' is not defined"

.Visual studio 2005,2008 and 2010 installed on my machine.

Code below :

Me.XpProgressBar1 = New Framework.Controls.XpProgressBar

any help appreciated.