kjliew wrote: I don't mean to encourage piracy, I did break IM copy protection ~20 years ago I was suspecting that back in a day somebody broke the protection. That was the only info I've been looking for out of curiosity. Thanks.

I still have my copy of The Infinity Machine (and still use it as well ^^ ). Sorry for bring back this old topic but I do wonder if anyone actually broke IM copy protection scheme? Secondly JCB64 how can I contact you those days? Long time we haven't spoken, but I am glad I still see you posting …

It's been ages since I've used SR 8.x and bios preprocessor (BIOSP.EXE) does not allow you to disassemble anything else than your host machine BIOS or GFX card rom. In fact you can still use SR to disassemble any file you like without BIOSP preprocessing however this will be quite tricky especially …

The easiest and quickest method nowadays is to run DOS inside VM :wink: If you want to achieve similar functionality from plain DOS without any virtualization/hardware aid the thing is a bit more complex. Here are some tips: First of all you can disable RTC by using ports 70h and 71h. Before …

But, so far, I have not run into a DOSBox game that did not run on a real DOS PC. If the release is not idea, I sometimes buy the game on eBay, especially Sold Out Software titles. Basically there is no reason for the game not being able to run on real PC under real DOS except for some protection …

Honestly I never had time to really research the subject but here are some facts & thoughts: 1. DosBox is easy to detect in numerous way, one easy is to check for it's substitute of BIOS as it includes DosBox name. This can be used in theory as protection scheme for game to detect that it is not run …

I still remember using /X option with Doom. thanks for pictures but let's not hijack this thread. If only I could "persuade" you somehow to share disk images... 😉

I would say that SoftIce for DOS was one of the best tools available, but it required a bit of assembly language knowledge. However thanks to 386+ hardware breakpoints functionality removing / bypassing many schemes of copy protection was just too easy. As a side note, since products by REM Software …

Thank you! That did the trick: changing keyboardlayout in dos section in dosconf option files from auto to none: keyboardlayout=none

I'm running DosBox 7.4 under Windows 7 and some semi-graphic characters like the ones used to draw windows frames in text mode doesn't look right. I guess DosBox is getting some font mapping from Windows? Anyway I've read FAQ and Wiki and could not find a solution to my problem: how can I fix fonts …