To view DWG designs, these converters offer viewing tools like Zoom, Orientation, Distraction-Free Environment, etc. To rectify this problem, I have created a list of DWG version converters which can convert one version of a DWG file to a different version. They are really lucky that r13 wasn't a 'fatal error'.The problem is that all the versions of a DWG file are not supported by most DWG compatible software. They had no real competition in this price range in those days, so why the rush? Not only did that encourage other companies to challenge them in the market, it encouraged customers to ask for something else too. The version they sold wasn't even really ready to go to what used to be called 'beta testers' (don't know if that still exists these days). I never really understood why they got in such a hurry to get that version out. I had to edit several lisp routines that used ascii codes because of that. Put the ASCII code in, you'd get a question mark every time. If I recall correctly, that was generated with a %%D in Autcad. The degree symbol is one that comes to mind. It would struggle with standard ASCII characters in a lot of cases too. We also had the problems with Norwegian characters (æøåÆØÅ) turning into '?' in millions of drawings. I also remember R13C4d etc, I was working for a reseller at that time, quite embarassing.

If we all had something to plot, we got one page a day each. A 'd' size sheet could take as much as an hour to plot. The biggest reason for that was that there were 7 of us in the office, and we had one serial pen plotter (which I have here at home now, poor useless dinosaur). Pop it up full screen when we really needed to concentrate on something, but that gave us the ability to be able to toggle back and forth from the drawings to the software we used to route parts through the shop and not have to have paper drawings on the desk. By then, I'd figured out how to write '*.pif' files (the youngsters will have no idea what that is.hehe) so we'd run the regular release 11 and the dos version of 12 in a window. Fortunately, it was a demo version that we didn't have to pay for. We messed with that for about 3 days, and scrapped it. It was so bad that you could type 'open' and it would appear one letter at a time about a second apart. Man, I was cooking, but even on that speed demon, you could easily type faster than the interface would respond. We were running the best 386's money could buy in those days, as I recall I had a whopping 8mb of ram, and a 15' color vga monitor. It was horribly slow, even when just typing in commands. Looked like someone had force fit a Windows 3.1 interface onto a dos program.

I don't really remember what it was called.

Wasn't that 'c2' or am I thinking of something else? I'm pretty sure I've got it back at the office.

Autocad r12 dos download freeware