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What LPT ports get scanned for a key?

Attempting to put Unity Enterprise on a Win2k machine<br>that has an add-on parallel port at Interrupt 5 and Address E400-E407. Seems not to work. Is anything other than Interrupt 7 Address 378-37F supported? Can it be adjusted in a .ini file? Thanks.<br><br>


Re: What LPT ports get scanned for a key?

Hi Ed.

No, there’s no file or registry setting I know of that directs the security key driver to look for a particular parallel port configuration. There should be no need to direct it to a particular interrupt or a base address. The interrupt, in fact, does not even need to be defined for the parallel port, the communication takes place via reading the key via the IO port.

Having your parallel port at a high address such as E400 seems like an inherently bad idea, however… there are some PCI video controllers and the like that will want to be floating around in the Exxx IO port range and you’re asking for trouble. Any reason why this external parallel port can’t be run at 378? Are there more than one parallel ports defined? If that's the case, you could have trouble.

Can you open the Windows NT Diagnostic application, go to the Resources tab and check the IO port range to see that “parport” is listed there properly and there's only one? If you see it there and you still can’t use it, let me know and we can pop a question off to the security key folks to see what they have to say about it.

Jeff Lindborg
Unity Product Architect
Active Voice