Q: Problem to call dll from VBA code with Excel 2011 for Mac

With Excel 2011 for Mac, where should I place my dll to be called through my VBA code ? and how should I specifiy the path of my dll ? (by using "/" or ":" between repertories?)

For the moment, when I try to use a function of my dll, I receive this message : "Error 53 - Cant't find xxxdll"

Remind : with Excel 2004, I had to put my dll in this repertory : "System/Libraries/CFMSupport", and I call functions without specifying their path.

(my dlls are coded in C with CodeWarrior)

Thank you for your help