simple disable the printer port spoller service in windows
most drivers for printers just use there own and its not arbitory to the port just port activated
however windows spoller runs all the time ....
better disable this service to use programmers that are time domain sensative where lpt is being also hogged and checked by services other than plug and play...
as i said if you enable plug and play o/s setting there is no need to disable detection as this is done once when you boot and once when you plug something in{terminate stay resident}as part of plug and play drivers..... if you use non plug and play settings your machine will use physical drivers and not virtual sockets & WDM windows driver models ...
given the added spooler service a latched physical driver will be at a major priority disadvantage
so remove the spoller no matter what
then set the bios the right way and reboot twice... before tests
coincidently the microsoft default fax and file drivers both reuse the spoller service till its disabled and they are then free to use for 'other things'
i just delete all drivers and disable the service's use plug and play enabled ..in bios... setting
if you install windows without it set the plug and play detection'legacy' is unticked by default when you look at the device manager lpt drivers ..
if you enable plug and play o/s and install windows say xp its then enabled{ticked} by default ie windows picked up the bios plug and play ' virtual sockets 'address ranges and sets up the drivers... for you
this can be done by as i said enable it in the bios boot up then reboot
simple!!!!
in xp / win NT/2000 etc click start and run
'NET STOP SPOOLER' you can also use this command or NET START SPOOLER too restart it you can set the 'print spoller' service in xp to manual
right click my computer choose manage enter services and change the print spoller to manual then you can start and stop it as needed ie if you have a big printer job of 10 or more pages etc ... start it if not why have it using time and memory and not at bills whim...
and dont forget to enable apic v2 tables with later than p3 machines.... or youll have no virtual addressing and this will slow a machine by 25%
machine toshiba equium laptop usb only type p5b asus main machine thinking of adding dual lpt pci card both used for top and lpt via usb where i can
old p2 programming grumbling tank with xp sp3 for true serial and lpt
all machines bios set to enable bios plug and play aware o/s and lpt spollers services and drivers removed legacy detection enabled
lpt true port setup for this programmer tips...
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Posted - 07/19/2009 : 17:54:06
