In Scott Swigart's latest video tutorial,Build .NET Controls for VB6 Apps, he shows how the Interop Form 2.0 toolkit lets you build .NET controls that are usable from within VB6. Scott builds a simple ping control in .NET that asks for an IP address to ping and then displays the results in a text box. After compiling the the user control, Scott, builds VB 6 form that seemlessly hosts it.