Hi Bob Just a wild guess... Some programs who want to do direct port I/O might need something like the GiveIO driver, which lets the user mode applications do these things. I know that there were other similar drivers like this, but now only this one comes to my mind. I don't know which one VirtualBox wants to have, but I bet that it wants to do the LPT I/O in user mode and so it needs something like this in order to get access to the port address space...
Best Regards, Jaka On 25 February 2011 22:32, Bob McCurdy <[email protected]> wrote: > I wrote yesterday asking fotr help using the parallel port on a Windows 7 > host from a Windows 2000 guest. I have found quite a bit from searching > source code, the config file, etc. However, when I set enabled=true in the > config file VirtualBox comes up with a VERR_PDM_DRIVER_NOT_FOUND error for > LPT1. It seems evident there is something more that needs to be done to get > the VM to recognize LPT1 on the host, which, by the way, works fine > otherwise. If anyone knows what else needs to be done I would really > appreciate it, at the very least a nudge in the right direction! We are > under a real time crunch to get this working. We only need to be able to > send a single character out through the LPT port from time to time, so fancy > support for more sophisticated printers is the least of our worries. Thanks > in advance to anyone who can help me with this. If something needs to be > modified, recompiled, etc., that is okay. I have been writing both low and > high level software for many years so no real problems there. Thanks again > for any help. > > Bob McCurdy > > > _______________________________________________ > vbox-dev mailing list > [email protected] > http://vbox.innotek.de/mailman/listinfo/vbox-dev > >
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