Property Page and VB Snap-In

I am attempting to display a Property Page from a VB MMC Snap-In. I currently have a single text box on the Property page (just trying to get it working). When I try to add the property page show below I get an error which states: Invalid class string?

Private Sub Views_CreatePropertyPages(ByVal View As SnapInLib.View, ByVal selection As SnapInLib.MMCClipboard, ByVal PropertySheet As SnapInLib.MMCPropertySheet)
PropertySheet.AddPage "PPage1", InitData:="New Text"
End Sub

PPage1 is the name of the property page. Does anyone have any idea as to what is going wrong? Does anyone have a very simple example that I could try?

Thanks in advance!