Demo version of expert advisor

I cannot find any docu about compiling expert adivsor in demo version? How do I create a demo version of EA or Indicator?

Please clarify “demo version”. Is can be used for a limited period or can only be used on demo accounts?

Here is a screenshot of a demo version. it is the about Tab of a demo EA.

if (!IsTesting()) return;

You can’t compile such version yourself, it’s done automatically for Market’s products.

Does it mean. Source code must provide to metaquotes and they compile it into demo version for me?

No. You provide ex4 or ex5 and they add an extra “layer” to it.

Thx for your nicely reply.