Thread, give me the parameter!!!

[Xmas79]

How can I set the initial parameters of a thread? For example:

private sub eheheheh()
    param1=0
    param2=4
    Dim x As New Threading.Thread(AddressOf DoOperation)
    x.Start()
end sub
Private sub DoOperation
    Result=param1+param2
    'Do your stuff...
end sub

Notice that I don't want to wait for this operation to finish, I want only to set the initial parameters of the thread. And I don't want to use local variables because sub eheheheh can be called several times...
Any ideas?

Thx,
Xmas79