This situation can occur if BitWare for Windows is installed. The current versions of BitWare are 3.30 and 7.0, which are not fully compatible with the versions of Windows that are listed in the "Applies to" section of this article. To check to see if BitWare is running, look for instances of Bwagent.exe or Bwprnmon.exe in Task Manager.
RESOLUTION
WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.
For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor(Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT or Windows 2000, you should also update your Emergency Repair Disk (ERD).
Uninstalling the BitWare software is the best course of action, but is not available for all versions.
If uninstalling is not available, you can delete all registry entries and drivers that refer to BitWare manually:
Start Registry Editor (Regedt32.exe).
Locate references to BitWare in the following keys in the registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print\Environments\Windows NT x86\Drivers\Version-2
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print\Monitors
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print\Printers
On the Edit menu, click Delete for each BitWare subtree.
Quit Registry Editor.
Delete all BitWare drivers from the%SystemRoot%\System32\Spool\Drivers\W32x86 folder.
Restart Windows.
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