[You mentioned using VPC and MS-DOS.... You can do the same with DOSBox. Boot a real MS-DOS inside DOSBox.] Ok, created an image of a DOS622 as DOS622.IMG, mounted a drive where the image file is and booted such image file. Worked like a charm. Now I need to run the applications under this DOS6.22, …

I was able to install and run 4DOS within DOSBOX. Now I will try the application within 4DOS, and see if the parallel port still reachable by the application. For some strange reason, PORTALK doesn't work in freeing ports 0378-037F from Windows XP. I needed to use USERPORT for that, and strangeer …

Checking JP Software website for the 4DOS, during the installation it says not (strongly) recommended to run under WinXP. It recommends to use the 4NT paid version instead. Going back to step #1 while trying to find a simple solution. I also found out that the DOSBOX MegaBuid4.1 from H-a-l-9000 ( …

Thank you for the answer, Qbix. Even that DOSBOX was developed with games in mind, actually DOSBOX is the best solution against the evil lack of real DOS on newer windows platform, not only for gamers. I am a small hardware and software producer, mostly related to microprocessors and …

Hello, I am using DOSBOX 0.72 to run an small application within XP SP2, that require access to some pins of Serial Interface COM2: (02F8h) and some pins of the Parallel Interface LPT1: (0378h). Up to this point everything is nice, clean and smooth, but it requires the USERPORT.EXE and .SYS so XP …