Using LPD-Win with Win XP:

Win XP is shipped with a LPD print service, so maybe you don't
need LPD-Win at all. Use Control-Panel, Software, Windows Components,
Other File and Print Services, add Unix Print Service (Names depends
on language).

But if you need LPD-Win (for submitting the print jobs to an application)
the procedure is almost like with Win NT:

a) "instsrv.exe" is called "sc.exe" at XP.
b) "srvany.exe" isn't shipped with XP, but can be downloaded at Microsoft:
    ftp://ftp.microsoft.com/bussys/winnt/winnt-public/reskit/nt40/i386/srvany_x86.exe
    This is a self extracting ZIP file containing srvany.exe (and documen-
    tation).

- Copy srvany.exe to the lpd dir (c:\tools\lpd for instance).
- Run "sc create lpdwin binPath= c:\tools\lpd\srvany.exe"
  (With all spaces, including   ^ this one.)
- Run Regedit, find "...Services\lpdwin"
- Add a key "Parameters"
- Add a string value (REG_SZ) named "Application" below that key and
  enter "c:\tools\lpd.exe" there.
- If you add a value "AppParameters" with "hide protect" the user
  cannot see/close the LPD.
- Change in the base key "Start" to "2" and "Type" to 110 (272).
  (This can be done with Control Panel - Administration - Services,
   too, where I set Start to "auto" and "allow desktop access".)
The names here are in german, so I can guess only, how they are
labled in english.