Property pages have the ability to be "hooked up to" multiple ActiveX controls, usually by multi-selecting the ActiveX controls in the form designer, and right clicking to invoke the property pages. OleObject points to the first control in the array. To access other ActiveX controls, use the property, OleObjects. 

Cast the value of OleObject to the appropriate interface, such as IUnknown or IDispatch, and use the methods of the interface to access the property values and methods of the control. 

UpdatePropertyPage 

UpdateObject 

OleObjects 

Updating the Object 

Updating the Property Page