I've been running ewbf 0.3.2b for about a week with no problems.  I got it here from links in the 1st post.  I started having trouble with my bandwidth so I switched off the computer (running Windows 10) for a day or so and it seemed to help.  Next day when I restarted the miner.exe with the modified flypool.bat file I was using all along, the program output a message.  I can't remember what it said but it was something like "invalid connection" or "invalid pool".  Right away I ran the .bat file again and then miner.exe was gone, it had evidently deleted itself.  I turned the pc off right away.  When I turned it back on a day later my bandwidth seemed to take a hit again.  The bandwidth slump could be coincidental but I find it very suspicious that a program would delete itself (or hide itself).  What purpose would it serve?  I ran it from a command prompt so there was no way I deleted it by accident.  I don't usually post unless I can't find any info.  I just wanted to share my experience.  I'm not saying the program is harmful but did it do anything else suspicious besides delete (or hide) itself?