I believe that in order to change an item in the array, the entire array
needs to be changed at the same time.
If I understand the question correctly, here is one idea...

Sub Demo()
Dim Dic
Dim M 'Matrix Array

Set Dic = CreateObject("Scripting.Dictionary")

' Add Key, Item (Both Required)
Dic.Add "Hello", Array("Zero", "Item1")

Debug.Print Dic("Hello")(0)
Debug.Print Dic("Hello")(1)

'Get Data to change
M = Dic("Hello")
'New Data
M(1) = M(1) & ", Item2"
'Change it
Dic("Hello") = M

Debug.Print Dic("Hello")(0)
Debug.Print Dic("Hello")(1)
End Sub

= = = = =
HTH
Dana DeLouis


jrpfinch wrote:
Please could somebody help me why this code does not work as expected
in Excel 2003:

Sub Test()
Dim dic As Dictionary
Set dic = New Dictionary

dic("Hello") = Array("Zero", "Item1")
Debug.Print dic("Hello")(0)
Debug.Print dic("Hello")(1)

dic("Hello")(1) = dic("Hello")(1) & ",Item2"
Debug.Print dic("Hello")(1)

End Sub

Output:
Zero
Item1
Item1





Thanks

Jon