PLL Visual Basic Program

Can anyone give me some links to get started with a GUI based controller program design in Visual Basic.

I'm using Analog Devices PLL IC and windows xp(32 bit)

Have you looked HERE?:

RF / IF ICs | Mixers / Multipliers Attenuators / VGAs / Filters Switches Integrated Transceivers, Transmitters and Receivers PLL Synthesizers / VCOs Detectors Direct Digital Synthesis ( DDS) & Modulators Amplifiers Modulators / Demodulators Timing IC