If you receive the subject message, you may have a third party driver that starts when Windows NT starts and conflicts with your printer driver. The Parallel device may also fail to start with:

                                 Event ID: 3                                 Source: Parallel                                 Type: Error                                 Category: None                                 Description:  Not enough memory was available to allocate internal                                 storage needed for the device.
Locate and disable this third-party device driver using Control Panel / Devices / Startup / Disabled. Restart your computer.

The third-party driver will have been installed by one of the software packages you setup since the previous boot.