VB.NET project threading issue - wpf

Question

If ServerVersion > localVersion Then
Net.ServicePointManager.DefaultConnectionLimit = 20
Dim url As New Uri(sUrlToReadFileFrom)
Dim request As System.Net.HttpWebRequest = CType(System.Net.WebRequest.Create(url), System.Net.HttpWebRequest)
Dim response As System.Net.HttpWebResponse = CType(request.GetResponse(), System.Net.HttpWebResponse)
response.Close()
Dim iSize As Int64 = response.ContentLength
Dim iRunningByteTotal As Int64 = 0
Using client As New System.Net.WebClient()
Using streamRemote As System.IO.Stream = client.OpenRead(New Uri(sUrlToReadFileFrom))
Using streamLocal As Stream = New FileStream(sFilePathToWriteFileTo, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None)
Dim iByteSize As Integer = 0
Dim byteBuffer(iSize - 1) As Byte
iByteSize = streamRemote.Read(byteBuffer, 0, byteBuffer.Length)
Do While iByteSize > 0
streamLocal.Write(byteBuffer, 0, iByteSize)
iRunningByteTotal += iByteSize
Dim dIndex As Double = CDbl(iRunningByteTotal)
Dim dTotal As Double = CDbl(byteBuffer.Length)
Dim dProgressPercentage As Double = (dIndex / dTotal)
Dim iProgressPercentage As Integer = CInt(Math.Truncate(dProgressPercentage * 100))
bgDownloader.ReportProgress(iProgressPercentage)
iByteSize = streamRemote.Read(byteBuffer, 0, byteBuffer.Length)
Loop
streamLocal.Close()
End Using
streamRemote.Close()
End Using
End If
Using the above code in a BackgroundWorker on a VB.NET WPF Project. An error occurs when I try to start the code.
The calling thread cannot access this object because a different thread owns it.
This code works perfectly in WinForms project without any edits/modifications.

Answer 1

Thanks to #Cruled for providing the clue. It has been fixed.
What I did is add invokes on all things needs updating.