Changing the default WinNT install path.
If you want to change where NT expects to find the NT CD, edit:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Sourcepath
and
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Setup\Sourcepath
If your CD drive is D: and you are working with an Intel-based machine, the value should be D:\I386 and D:\ respectively.
Changing the default spool directory.
You can change the default printer spool directory for all printers or the printer spool directory for specific printers.
To change the default printer spool directory for all printers add the following value
HKEY_LOCAL_MACHINE \SYSTEM\CurrentControlSet\Control\Print\Printers
Value Name: DefaultSpoolDirectory
Data Type: REG_SZ
String: full path to printer spool directory
To change the default printer spool directory for specific printers add the following value
HKEY_LOCAL_MACHINE \SYSTEM\CurrentControlSet\Control\Print\Printers\
Value Name: SpoolDirectory
Data Type: REG_SZ
String: full path to printer spool directory
You must make sure that the path specified actually exists. If it does not exist, Windows NT uses the default spool directory.