Certain components bundled with Delphi are ActiveX controls. The component wrapper is linked into the application's executable file (or a runtime package), but the .ocx file for the component also needs to be deployed with the application. These components include:

• Chart FX, copyright SoftwareFX Inc.
• VisualSpeller Control, copyright Visual Components, Inc.
• Formula One (spreadsheet), copyright Visual Components, Inc.
• First Impression (VtChart), copyright Visual Components, Inc.
• Graph Custom Control, copyright Bits Per Second Ltd.

ActiveX controls that you create need to be registered on the deployment computer before use. Installation programs such as InstallShield Express automate this registration process. To manually register an ActiveX control, choose RunActiveX Server in the IDE, use the TRegSvr demo application in \Bin or use the Microsoft utility REGSRV32.EXE (not included with Windows 9x versions). 

DLLs that support an ActiveX control also need to be distributed with an application.