When few accounts connected, only first account can submit order. As I understand, multiple account login is not supported (allowed to have only one instance of IClient). I need advice how I can solve this problem. Maybe create new instance of some class or something else?

Thank you.

Every account needs to be connected in a separate process, for example see the last post of:
viewtopic.php?f=65&t=35436

Thank you for reply.

At this moment, I use the same solution. This way have a number of problems such as: much memory use, information exchange complexity between processes (each application has client-server utils to transfer data).

Maybe exists some alternative solution? Maybe solution with creating new instance of JVM for such process and much pretty information exchange? Or maybe some JForex hacks (creating some subclasses or new instances of API classes)?

Thanks.

We don't provide solutions how to circumvent the system constraints.
Could you please elaborate on what you are trying to do? Maybe this can be done by using a single account?