Controling SAP FrontEnd Login from Windows Form

I'm trying to create an interface that will allow another system to interact with my component which will then force a login to the SAPGUI and pass along specific parameters that will bring up the appropriate transaction in the SAPGUI.

This was done before in a pre 6.20 version of SAPGUI with and much older version of VB. It seems that the active x object from the old version is not available any longer. Anyone have an idea what the equivalent is in the latest version of the GUI?

Thanks