v2.0.0.288
I've switched back to Delphi. The .Net version had trouble running more than three threads, and behaved strangly when exceptions occur. The option to use three regex'es in one run is gone, but there's an option now to use Execute instead of Test showing both the number of files that match, and the exact total number of matches in these files.
Also new is that when you double-click a matching line (double-click a file-node to get these), you not only get the five preceding and succeding lines, you also get the lowest preceding line of each lower level of indentation. It's hard to explain, but in most languages you should get the lines that starts the scope the line is in: namespace, function, method, loop or condition branch.