The article deals with the problem of conflict-free trading of several experts on the same МТ 4 Client Terminal. It "teaches" the expert to manage only "its own" orders without modifying or closing "someone else's" positions (opened manually or by other experts). The article was written for users who have basic skills of working with the terminal and programming in MQL 4.
25 to 30% of all crashlogs received from users appear due to errors occurring when functions imported from custom dlls are executed.
The article deals with the outlook of using MQL4 for more productive work at FOREX markets.