How to use COM object in C#.NET Visual studio 2008

Use COM object in Your project?

What COM? legacy com .com+...Phew!!!!

Its easy to use COM object in your project.

If you have a dll which says it cannot be added as reference to your Project...So Register it using regsvr32 dllname.dll

Goto start->Run->regsvr32 dllname.dll

Once you register the com object dll ,now you can add as a reference by going to the COM tab in the Add reference Dialog box.
Right click on Reference->Add Refernce->COM tab->search for the dll name which u registered

Thats it you added com components to your project.Now you can access the COM object by adding

Using comClassName; // Add this mostly it will same as the dll name

and instantiate an object for that

comClassName obj=new comClassName;
string returnsValofComFunc =obj.funcInComDLL();

Thats it now you can use the functions are properties inside the com component dll directly instantiating the class.

What is instantiating?
className obj =new className(); // creating an Object for a Class is called instantiating.

What is Class?
Skeleton structure of a component

Class Car
{
   int carWheels;
   int carDoors;
   string engine;

   public int func()
   {
    carWheels=4;
    return carWheels;
   }
}

//Now if you instantiate this class you can get the class Car details
//Do you want to findout how many wheels in the car

Car carObj=new Car();
int noWheels=carObj.func();