For those of you still experiencing the dreaded 701 error that may occur when using IWP (IWP crashes leaving FMP users intact) then here's a couple of items that will interest you.
For ALL of our crashes, the user was using Chrome 29 (or a previous version.)
For almost every crash, the script that was last clicked was a switch to another DB file
Absolutely all of our crashes were initiated by Chrome users when searching log files going back 6 months. We are about to ask the Chrome users to switch to another browser, and if we do not receive another 701 after two weeks we are going to call this a major success.