VBA code needed for calling RegEDIT windows function

HI,
I am using Win 7 ultimate and MS Excel 2007 at home and 2010 at work.
In my form,
I managed to place the VBA code for calling a Windows remote assistance and remote desktop connection, using the same code but I am stuck trying the same code for REGEDIT function.
Anyone managed to do that in home and/or working environment?

Any help or advice (code) appreciated.
Regards

Private Sub CommandButton31_Click()
Dim x As Variant
Dim Path As String
Dim File As String

    Path = "C:\windows\regedit.exe"

    x = Shell(Path + " " + File, vbNormalFocus)

End Sub

I also tried System32 directory path, but no success