Yes I can tell you and no, do not delete it. The file is located in your acadr14 root directory, its called SH31W32.DLL.
You can get a new SH31W32.DLL by downloading it from a few websites, I think it is even in these discaussion groups atttached to a message, get it, replace the one in your directory with the new one , double click the ACADAUT.REG file in the same directory, and you should be good to go.
You do not have to run it in virtual xp mode, I have fix a few problems like it not loading cruicial ARX files at startup, I have no idea why they wont load but I figured out which ones are needed and added them to my ACAD.LSP file.
The only problem I have now remaining is I get a crash error whenever I offset an ellipse (which I rarely do) or whenever node clicking on a spline, I know when you offset an ellipse it makes a spline, so I think it does NOT like splines at all. I rarely use them so its no big deal to me and I have set the PELLIPSE variable to 1 which makes an oval out of regular polylines which can be offset without error.
I will continue to try to fix the spline error, I will not be beaten !!! R14 is lean and mean, I also use 2010, but if I need to do a project fast, I use R14, go figure, they keep adding more and more 'junk' instead of trying to improve speed & enhancing basic drawing commands.
Its hilarious, at work they have 2010, I installed my legal copy of R14 on my computer, I tell my boss when he asks why I am using R14 "do you want it done fast with the exact same results, or do you want it to take more time using your precious 2010". I have to train people in 2010 to draw a friggen wall of a particular type, how to construct a wall of a particular type in AEC, its baffling even to the most seasoned autocad operators, and the drawings we do are not even for 3d purposes. Then the naysayers say, hey look I can switch the swing of a door with one click, LOOK, I laugh at that, big FRIGGEN deal, the mirror command does the same goddam thing, 2 clicks, your done. One of the many peaves I have with the "newer" Autocads is simple things like the layer dialog box, WHY do I have to wait a 1/2 second for the thing to appear, I am running an pentium I7 with 2 gigs ram, are you joking me, in R14 its of course lightspeed like everything else. I use and so do most the layer command once every 10 or so commands, add up that half second over a day, a week, your talking hours.
I can go on & on but its fruitless, there is no more support for R14. Its Funny many years after I purcheased R14 for some big buck (to me), they said thay will no l onger suppoert it so you have to upgrade, I DID, to 2002, so I own 2002, and I NEVER used it, I loaded it, tested it, and said, I can do everything I need to do faster in R14, why would I use this ? And that was the last time I upgraded, not to mention they started coming out with one every year.