2 windows open when i click F1 in VB code
 

when i click F1 in certain code of VB , my library help example(
help1.chm) and VB help are opening. actually my library should open.
closing VB help , my library help is also closing , therefore something
related to parent relationship. how to hide or remove the VB help when
i click F1 on related to certain help(.chm).

note: u can see visual basic for applications under references of
tools menu
tools-references-VBA
its mandatory check , we cant uncheck it.