[quote user="chih bo yu"]Nope, it does not have, I have tried to find it so many time.[/quote]
I guess your installation is not correct, because I checked installation package bim081109747en.exe (which thinks is ABD SS5) and I see MicroStationVBA.chm inside. The file is installed into the same folder as main exe file (e.g. ustation.exe).
[quote user="chih bo yu"]Could you give me a example?[/quote]
I don't think it's a good idea (and it also requires too much time) to share example for every single issue you will encounter using VBA without a proper documentation.
With regards,
Jan