CEView also supports VBScript. The hardware manufacturer of the Microsoft Windows Embedded device must enable the support for VBScript on it, so CEView will be able to execute the scripts configured in VBScript language on the device.
The MsgBox() and InputBox() functions can be specifically enabled/disabled by the hardware manufacturer when the image for the Windows Embedded device is created.
If you are not sure if the image loaded on your device supports VBScript, please consult the hardware manufacturer.