GetSqlPlusPath - Get the path of the Oracle's SqlPlus.exe utility

' Get the path of the Oracle's SqlPlus.exe utility
Function GetSqlPlusPath() As String
    Dim regKey As Microsoft.Win32.RegistryKey = _
        Microsoft.Win32.Registry.LocalMachine.OpenSubKey("SOFTWARE\ORACLE")
    If regKey Is Nothing Then
        Return ""
    End If

    Dim sqlplusPath As String = System.IO.Path.Combine(CType(regKey.GetValue _
        ("ORACLE_HOME"), String), "bin\sqlplus.exe")
    regKey.Close()
    Return sqlplusPath
End Function