Form Name:
Form1.vb
Form2.vb
If in Form1.vb want to access Form2.vb, we must create an instances of forms and then we will display it.
In Form1.vb:
'-------------------------------------------------------
Dim myFirstForm As Form2
Dim mySecondForm As Form2
Dim myThirdForm As Form2
Set myFirstForm = New Form2
Set mySecondForm = New Form2
Set myThirdForm = New Form2
myFirstForm.Show
mySecondForm.Show
myThirdForm.Show
'-------------------------------------------------------
or
'-------------------------------------------------------
Dim myFirstForm As Form2 = New Form2
Dim mySecondForm As Form2 = New Form2
Dim myThirdForm As Form2 = New Form2
myFirstForm.Show
mySecondForm.Show
myThirdForm.Show
'-------------------------------------------------------
Sumber:
http://msdn.microsoft.com/en-us/library/aa289529(v=vs.71).aspx