Registry entries for printing

Summary

The article contains REGISTRY entries for Printing. These subgroups are included:


  • Printing Entries for Users
  • Control\Print Entries for the Computer
  • Print Environments Entries
  • Print Monitors Entries
  • Printers Entries
  • Print Providers Entries

More Information

Registry Entries for Printing

The Registry contains printer information in these locations:


The per-user settings for the current default printer are stored under this key:

HKEY_CURRENT_USER\Printers


The hardware-specific information about drivers and print processors is stored under this key, where Hardware represents the subkey for a specific Windows NT platform, such as Windows NT x86 or Windows NT R4000:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print


Always use Print Manager or the Printers folder to change configuration settings for all printers.




Printing Entries for Users

The following Registry path contains a description of the default printer, as selected by the current user:

HKEY_CURRENT_USER\Printers


The following Registry paths contain the user preferences for print devices in Windows NT 4.0:

HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Devices


HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion \PrinterPorts



The Device value in the following Registry path contains the user's default printer:

HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows


The following Registry path contains the user preferences for Print Manager in Windows NT 3.51 and earlier:

HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion \Print Manager



These standard entries appear:



Network REG_DWORD
Default: 0x1



Print Manager REG_BINARY
Default:



Save Settings REG_DWORD
Default: 0x1


Control\Print Entries for the Computer

The principal information for printers appears under the following Registry path:


HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print


This path contains additional subkeys that define supporting DLLs, drivers, and other necessary information for installed printers. These subkeys can include Environments, Forms, Monitors, Printers, and Providers. An OEM print provider might also add subkeys under this Registry path.


Print Environments Entries

The following Registry path contains these subkeys, each of which can contain a value entry defining the directory that contains the appropriate drivers:



HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Environments
\Windows NT Alpha_AXP
\Windows NT Alpha_AXP\Drivers
\Windows NT Alpha_AXP\Print Processors
\Windows NT R4000
\Windows NT R4000\Drivers
\Windows NT R4000\Print Processors
\Windows NT x86




A PrinterDriverName subkey under the related Drivers subkey can contain these values:



Configuration File REG_SZ
Default: Installed DLL filename



Data File REG_SZ
Default: Installed .PPD filename



Driver REG_SZ
Default: Installed driver DLL filename



Version REG_DWORD
Default: Version number


A Print Processors subkey (and subsequent subkeys) under this same Registry path contains an entry of the following type:



Driver REG_SZ
Default: winprint.dll


Print Monitors Entries

The entry in the following path defines the DLL filename for the appropriate print monitor:


HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors \<Provider Network Port>




Driver REG_SZ DLL filename

The Options subkey for the Hewlett-Packard Network Port contains the following entries, all of which are REG_DWORD:



Adapter=0
ConnectionType=0x1
DlcBufferSize=0x27100
DlcT1Timer=0x5
DlcT2Timer=0x2
DlcTiTimer=0x3
EventLogging=0x7
LinkStationsUsed=0x40
StatusUpdateInterval=0x3c


Printers Entries

Each installed printer has a subkey in the following Registry path:


HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Printers \<printer name>



The following entries can appear under such a subkey:



Attributes : REG_DWORD: 0x1
Datatype : REG_SZ: RAW
Default DevMode : REG_BINARY:
Description : REG_SZ: driver description on port
Location : REG_SZ :
Name : REG_SZ : user defined
Parameters : REG_SZ :
Port : REG_SZ : port name
Print Processor : REG_SZ: WinPrint
Printer Driver : REG_SZ : driver name selected in Setup
Priority : REG_DWORD: 0x1
Security : REG_BINARY :
Separator File : REG_SZ :
Share Name : REG_SZ :
StartTime : REG_DWORD : 0
Status : REG_DWORD: 0
UntilTime : REG_DWORD: 0


Print Providers Entries

Each print service provider has a subkey in the following Registry path:


HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Providers \<Print Services Name>




The default subkey for a Windows NT network is LanMan Print Services. Such a subkey contains the following entry:



Name REG_SZ DLL filename
Default: win32spl.dll


REFERENCE

"The Windows NT Resource Kit for Operating System Version 3.1".
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