Inorder to do this you would need a ActiveX or COM object that support this kind of functionality. I have never worked with a ActiveX object that could do this but I could imagine that they should exist some whare. My advise would be to try and search the web to see if you can find a component that can do this.
Acrobat Reader comes with a DLL that provides an interface, but I think it's DDE only. I do know that it's also quite limited because Adobe wants people to buy the full version of Acrobat when trying to do things like this.
