Hello all!

I have a problem. We have a very old machine to obtain hysteresis cycles from ferromagnetic materials in our laboratory at Spain. That machine came with a laptop (pentium 133Mhz, windows 95) and a ms-dos application to record data from that machine that uses LPT port.

The application runs smoothly on dosbox, but the problem is the communication over lpt port. I tried with megabox 6 and SVN Daum builds, and when it start the application the cpu usage go up to 100%, the program works, but we lost data in the process so we cant use it. I'm using Windows XP and also Linux (for Daum version), with the reallpt option. I found a article from microsoft database about high usage of cpu time with lpt port: http://support.microsoft.com/kb/318273 but is there any solution to this issue?

Any idea to solution this problem? I'm considering using a virtual machine instead dosbox, but i would prefer using dosbox for simplicity. I uploaded the program to: http://krasny.net/J_meter.zip The main application is J_METER.exe, and when it starts you can see the problem because it uses lpt port.

Thanks!

p.d: sorry for my terrible English!