>Thanks for your help, but the problem is the object "Separator". This object don't have the property Zorder on the .VCX file. And this object is causing the problem. I think, when I delete all objects "Separator" from my toollbar, that problem goes way.
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>The only way I resolve the problem was create as many main toolbar class rather than subclass the main toollbar class. Now I can have “Buttons” and “Separator” in my class. It’s not FOO I now, but it’s only the way I can resolve the problem.

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And if you try it in the base class first?