crashes using mt4 build 419

I am getting some unexplainable crashes while using build 419 -- the program just shuts down with no warnings whatsoever, no crash reports, nothing. It just quits. anyone else noticed this? It is using a somewhat complex EA that uses DLLs, but crashes like these neer happened before in more than two years using other builds.

thanks for any input you might have!

Sounds like build 419 is not getting along with your dlls. That kind of error can be caused by untrapped exceptions and memory access violations in dlls.

Since build 418 had bugs that caused parameters of type double in dll calls to fail, it is most probable that metaquotes have changed the code in MT4 related to dll calls in build 418 and 419.

If you have the source of the dlls, you could try wrapping just about everything in exception handling clauses (try/except in delphi or the equivalent in the language they are written in).

Thanks, i'll give it a shot, but shouldnt a memory access error bring out the usual crash report either from mt4 or windows? The thing that makes me wonder is that nothing happens, i just go back to the computer to find mt4 is no longer running.

Sorry, I cannot say for sure. Probably depends. However, memory access errors are not the only kind of errors that can occur, there are many others. An exception clause should catch them all and you can write out some kind of a notification (A message box is probably not suitable as it will block MT4's UI thread and cause a crash if it is not closed asap). Any unhandled exception could potentially crash MT4.

You can also switch back to build 416, if that was stable. It is still supported by metaquotes.

Had the same problem on Windows7. Initial install path was under c:/program files (x86)/[MetaTrader Install Directory Name]. I deleted current installation and re-installed directly off the root (c, renamed liveupdate to liveupdate.old and problem went away.

I was running 409, and MT4 attempted to update itself via liveupdate. All work had been previous compiled under 409, and MT4 simply shut down after the application was launched without warning and without error message. I eventually found a good 409 executable and reinstalled off the root.

Currently 3 different new demo setups are not installing on win 7 and Win XP.
After cycling through all metaquotes.net servers the process times out or loops.
Anybody having this problem or know if MQ servers are down?