Threading and AddressOf in VB.Net

[Nick]

Hi, can someone tell me why wont this work:

Dim t1 As New System.Threading.Thread( _
AddressOf reflectionBegin(aString As String))
Referring to 'As' - Compiler says that Comma, ')' or a valid expression
continuation expected.

I am trying to get AddressOf to point to this method:

.....
Public Sub reflectionBegin(ByVal aString As String)
.....

How do i do it? All the examples show methods with no paramaters included.
When i don't include paramaters compiler says signature not the same.

".... Method 'Public Sub reflectionBegin(aString As String)' does not have
the same signature as delegate 'Delegate Sub ThreadStart()'....."

How do I fix it?

thx
Nick.