LPD server adds and prints control codes (150930)

RESOLUTION

The LPD service can be reconfigured to ignore the format control command from the LPR client and always assign the RAW data type. Use one of the appropriate sections below to reconfigure the LPD service.

Configuring SimulatePassThrough for all printers in Windows XP Professional and Windows Server 2003

To assign the RAW data type regardless of the control file contents in Windows XP Professional and in Windows Server 2003, follow these steps.

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

1. Start Registry Editor.
2. From the HKEY_LOCAL_MACHINE subtree, click the following subkey:

   \SYSTEM\CurrentControlSet\Services\LPDSVC\Parameters

3. On the Edit menu, click New, and then click DWORD Value.
4. Name the new entry SimulatePassThrough.
5. Double-click the SimulatePassThrough entry, and then change the data value to 1.
   
   Note The default data value is 0. A 0 data value informs LPD to assign data types according to the control commands.
6. Click OK.
7. Quit Registry Editor.

Configuring SimulatePassThrough for all printers in Windows NT 4.0 and Windows 2000

To assign the RAW data type regardless of the control file contents in Windows NT 4.0 and Windows 2000, do the following:

WARNING: Using Registry Editor incorrectly can cause serious, system- wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

1. Run Registry Editor (REGEDT32.EXE).
2. From the HKEY_LOCAL_MACHINE subtree, go to the following key:
   
   \SYSTEM\CurrentControlSet\Services\LPDSVC\Parameters
3. On the Edit menu, click Add Value.
4. Add the following:
   
   Value Name: SimulatePassThrough
   Data Type: REG_DWORD
   Data: 1
   
   NOTE: The default value is 0, which informs LPD to assign data types according to the control commands.

Configuring SimulatePassThrough in Windows NT 3.51

In Windows NT 3.51 the code looks for a registry setting in the LPD key instead of the LPDSVC key. You can work around this problem by creating an LPD key at the same level as the LPDSVC key and then duplicating the information in the LPDSVC key to the LPD key.

For Windows NT 3.51 to assign the RAW data type, regardless of the control file contents, do the following:

WARNING: Using Registry Editor incorrectly can cause serious, system- wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

1. Run Registry Editor (REGEDT32.EXE).
2. From the HKEY_LOCAL_MACHINE subtree, go to the following key:
   
   \SYSTEM\CurrentControlSet\Services\LPDSVC\Parameters
3. On the Edit menu, click Add Value.
4. Add the following:
   
   Value Name: SimulatePassThrough
   Data Type: REG_DWORD
   Data: 1
   
   NOTE: The default value is 0, which informs LPD to assign data types according to the control commands.
5. To work around the problem mentioned above, create an LPD key at the same level of the LPDSVC key.
6. Click the LPDSVC Key, click Save Key from the Registry menu, and then save the file as LPDSVC.KEY.
7. Click the LPD key created in step 5.
8. Click Restore on the Registry menu, click the file created in step 6, and then click OK.
9. A warning message appears. Click OK and then quit Registry Editor.
10. At a command prompt, type:
    
    net stop lpdsvc
11. At a command prompt, type:
    
    net start lpdsvc