Another example: I was working as a service tech for a hardware company. We had an order come in for 1200 off something that needed to ship in 4 days. The rub

Another example: I was working as a service tech for a hardware company. We had an order come in for 1200 off something that needed to ship in 4 days. The rub was that the firmware needed to be updated over RS232, and it only supported COM1. We realized if we did one at a time we wouldn’t have enough people to finish even 300 of them. We didn’t have any way to get ahold of the original developer in Japan. So I opened the program in a hex editor and started looking for the string COM1. When I found it I changed it to COM2, then 3, then 4 to produce 4 separate programs that we could run side by side.