OK, I didn't know before your example the zero-based array, thanks again for your help and the advice to use Watch Window !

Yes !!This time it's OK !I didn't get correctly the results from vtResult and with your sample code I found where the problem was.So thank you very much for your great help !!!Sincerely,Henri.

<t>Ooops I thanked you too early I tried the method but I get no results.Here is my code :----------------------------------------Set oBlp = New BlpData ReqSecurities = Array("SX5E Index") ReqFields = Array("OPT_CHAIN") With oBlp .SubscriptionMode = ByRequest .Subscribe ReqSecurities, 1, ReqFields, ...

Thanks a lot for the sample code, it's exactly what I'm looking for !!!Sincerely.