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First post, by OJ

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Hi I have succeeded in getting my msdos program to run on both my computers. But on Win7 pro when it tries to print, I get a message in dosbox status window: parallel 0: Failed to open lpt1. It then crashes dosbox back to command prompt.

If I run Dosbox without starting the program, I can do an echo to lpt1 successfully. But if I run the program and it crashes, the echo command doesn't work, giving same error message.

I've run out of ideas, any suggestions?

Config file attached

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  • Filename
    dosbox-0.73MB5.conf
    File size
    15.19 KiB
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    397 downloads
    File license
    Fair use/fair dealing exception

Reply 5 of 10, by OJ

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Status message is: parallel0: Failed to open lpt1

I also get a windows permission window each time I run the program on Win7 pro. I don't get that message at all on my Win7 home computer.

Also both computers are 64 bit.

Reply 7 of 10, by OJ

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This is the permission to make changes to my computer. I don't know how to review the changes being made. Any suggestions?

Also I have Win XPpro available using vmlite. I would like to avoid going that route, but I guess I could if we have run into a dead end.

Thanks so much for your help!

Reply 10 of 10, by OJ

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The message box I've been talking about is User Account Control. It requires you to give permission to change Windows. I found that you can change settings on this control. I changed the setting to no notification, re-ran the program and printing now WORKS! Windows says this is least secure, but I'm not using the internet with DOSBOX. So I guess it's OK.

Thanks for your help, especially HAL-9000