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Software locks and the parallel port

naveng9
naveng9 asked
on
Medium Priority
924 Views
Last Modified: 2013-12-29
I have 2 DOS programmes that have to access a Software lock
(dongle) in the parallel port on my P90 Win95 system.  They used to run fine until I loaded MSExchange which I now need.
The problem is that my system no longer allows the reading of the locks.  How do I overcome this problem?
Comment
Watch Question

What error messages do you get from your DOS programs?

Have you conclusively proved that MSExchange is the culprit? (i.e. by uninstalling MSExchange temporarily)

Author

Commented:
One DOS prog' reports 'invalid lock' and the other just refuses to run with no error message.

I have not conclusively proved the culprit to be MSExchange by uninstalling but installing MSExchange on a similar system ended with the same result.  Unfortunately Exchange is use 4 times a day keeping my databases in sync' with my head office; I'm loathe to uninstall it.
Commented:
Try commenting out lpt.vxd in system.ini (or any names like that).

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