Why Does Crystal reports, running in different thread, log in fail?

This code works when called on main thread.

Printlist ()

but fails when

ThreadPool.QueueUserWorkItem(AddressOf Printlist)

with a login error

this issue does not occur on my pc. (windows vista)


Ive tested and got the same error on 3 pc's
windows 2003
windows xp
windows vista

Public Sub Printlist()
        Try
 
            Dim crpt As New Lister
            Dim STRPath As String = AppDomain.CurrentDomain.BaseDirectory & "\cuurent.pdf"
            crpt.Refresh()
            crpt.SetDatabaseLogon("xx", "xxxxxxx")
 
            crpt.ExportToDisk(ExportFormatType.PortableDocFormat, STRPath)
            Dim MyProcess As New Process
            MyProcess.StartInfo.CreateNoWindow = False
            MyProcess.StartInfo.FileName = STRPath
            MyProcess.Start()
        Catch ex As Exception
            MessageBox.Show(ex.ToString)
            TextBox66.Text = ex.ToString
        End Try
    End Sub

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