Quote: "it says it failed to find exe"
Quote: "5 lines of code near the bottom of a do loop caused it."
If it's not too secret, might I inquire on what the line of code was? Might be helpful to know what can cause this.
It seems like a very strange error for a coding issue. As Green Gandalph said above, I have also had a similar issue in the past regarding temp files that needed to be removed. Another possibility is that DBP wasn't running in administrative mode and/or was trying to place and compile files into your program files or other protected directory? Just an odd error.
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.