Setting Default Printer via Registry


To set the default printer in the registry, follow these steps:
  1. Start Registry Editor (Regedt32.exe).
  2. Locate and click the following registry key:
    HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows
  3. Click the following value:
    Device=Printer1,winspool,LPT1:
  4. On the Edit menu, click Modify, replace the first value (Printer1) with the name of the printer that you want to set as default, and then click OK.
  5. Quit Registry Editor.

Source: http://support.microsoft.com/default.aspx?scid=kb%3ben-us%3b271257
 
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