I have couple of questions about VB6 COM addin

.. As quite newbee on this subject I create DLL ,reference it on
Excel.But as most are being test DLL I'like to delete them rather
than dereferencing. I do not know how to.

.. Will I use the only file which has a extention "dll" if I want to
use it on other PC as
VB6 produce other files as well along with "dll" extentioned one?

.. I put simple functions that I call from my excel code they work
great. How can I
make use of below excel VBA routine in my DLL.

If Not Intersect(Target, Me.Range("C:C")) Is Nothing Then
Call operatornamematch(Target)
Target.Offset(, -2).Value = Worksheets("tr2007").Range("B2")
Target.Offset(, -1).Value = Worksheets("tr2007").Range("B11")
Target.Offset(, 3).Value = Target.Offset(, -2).Value &
Target.Offset(, -1).Value & Target.Value
Target.Offset(, 4).Value = Target.Offset(, -2).Value &
Target.Offset(, -1).Value
End if


I use a wrapper to invoke DLL functions once Peter Beach suggested
such as

Option Explicit
Private m_objMyThing As TestCOMDLL.TestClass

Public Function TestWrapper1(ByVal a_nNumber as Double) As Double
If m_objMyThing Is Nothing Then Set m_objMyThing =
CreateObject("TestCOMDLL.TestClass")
TestWrapper1 = m_objMyThing.DoubleIt(a_nNumber)
End Function

Thank you very much in advance.