MT4 crashed.
I loaded an EA to char of VFX trader MT4,MT4 crashed.
the EA was coded on another MT4 with the lastest version 4 build 409.
the VFX MT4 is version 4,build 229.
You can't run a ex4 compiled on a newer version and run it on an older version. Programs are backwards compatible (compile on an older will run on a newer). Never forwards compatible.
WHRoeder. thanks for your explaination.