corel draw plugin application

Hi, I want a corel draw based software. the corel draw will run in background and our software will work as stand alone. this project will be mixed of corel draw macros and vba programming. we will trigger macros by buttons in our customize interface (created in vb or .net or any other language). which all functions we can automate, we will do it and for other we will use VBA programming. We will automate tasks involve in visiting card design, brochure desing, megazine design, flex desing and other DTP work. thanks