Is Specular + Dot3 + colored lights possible?

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Howitzer

Hello, I am making a model previewer program in Blitz3d for someone... but he wants the following features...

specular mapping
normal maps
multiple light setups (meaning colored lights)

I have seen normal maps done in Blitz3d, but I don't believe I have ever seen normal maps being used with colored lights. And I have never seen specular maps done in Blitz3d either.

I have tried searching the forum but finding a definite answer to these questions is difficult.