VM Ware on W7 X32 with W95 VM loses VM Parallel port / Application Dongle
Posted on 2015-01-28
Hi there, I have a customer with a legacy application that's running on a old/failing box. The os is like a kind of windows 95 dos shell OS and uses a Parallel Dongle as a hardware lock. I have managed to make a Virtual machine and run it a new Windows 7 x32 box with a PCIe Parallel port card.
It runs fine for a month or two then suddenly the w95 app cannot find the Parallel LTP1 dongle and will not start.
The LPT1 Parallel is still on the host, so If I go into the host device manager, into the properties, into the port settings and change the interrupt settings (doesn't matter which I choose), then click OK I hear the "ding ding" (the same as if you had just plugged in a USB device) then the Virtual Machine works fine until the host is next powered off.
With all that said, I wonder if there is a way to write a small batch file (or something) to make the interrupt change as mentioned above automatically each time the computer is started or as a task when the virtual machine is run.
Really appreciate any useful advice.