Yeah I think at the time it was a known issue that this software wouldn't run properly in wine and I just never tried again in the last 14 years. I'm not worried about bricking the ECU, I actually have a spare sitting on the shelf, and even if it did get bad enough that I couldn't fix it, I could probably take it to the dealer and have them re-flash it for me. Funny thing is, after going the rounds with their service guy trying to get the programming corrected from changing my gear ratio (I ended up giving them a VIN of another vehicle that came with those gears), they weren't able to change the programming to my own VIN but the truck still ran. No worries, because my software CAN change the VIN, so once I got that squared away it's been perfectly happy with all the new programming. I have to admit, there's a satisfaction in telling the dealer THIS is how you fix the problem, and when you're done with it I'll fix the rest of the stuff you can't do.