Error running Optimizer in a 64 bit OS machine: "Retrieving the COM class factory for component w (4299555)

The following error occurs when running Optimizer in a 64 Windows OS machine:

Unhandled exception has occurred in a component in your application.
If you click Continue, the application will ignore this error and attempt to continue.

Retrieving the COM class factory for component with CLSID {73AF78B...} failed due to the following error:
80040154.

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {73A2F78B-F5A5-48D1-B2EC-ED4C2278555C} failed due to the following error: 80040154.
   at Quest.Tuning.Oracle.ConnectionPoolWrapper.TConnectionManager.InitializeCOMReference()
   at Quest.Tuning.Oracle.ConnectionPoolWrapper.TConnectionManager.GetLicenseInfo(LicenseInfo& aLicenseInfo)
   at Quest.Tuning.Oracle.Common.TOracleCommon.OracleLicenseInfo(String& expiryDate, Color& expiryColor, String& strVersion, Boolean& showExpiry)
   at Quest.Tuning.Oracle.Main.frmSplash.displayLicenseInfo()
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at DevExpress.XtraEditors.XtraForm.WndProc(Message& msg)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Windows 64 Bit is not supported.

WORKAROUND: 
None

STATUS:
Enhancement request ST 49074 has been submitted to Development for consideration in a future release of Quest SQL Optimizer for Oracle.