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:

<b>
   Event ID: 3
   Source: Parallel
   Type: Error
   Category: None
   Description:  Not enough memory was available to allocate internal
   storage needed for the device.</b>
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.