VB ActiveX DLL to be integrate in C#

thanks for the advise. but i have a problem with the OCX activeX, because it cant be use in the form. its is a customized button, it is perfect in VB but in c# it cant be used.

If it is a valid COM component you can reference it into a project or add it to the toolbox just like you would anything else.  For example, if it should appear in the toolbox, you can right click in the area of the toolbox you want to add the control to, pick 'Choose Items...', select the COM tab, and search for the component.  If you need to add a reference to a DLL, go the project references in the solution explorer, right click, pick "Add References", pick the COM or Browse tab from the dialog, find your DLL and add it to the project.