Hi all I'm trying interface with a VB app that has a COM class with a collection property, but everytime i try to add a com object to this collection I get OLE Error 800A0005 var ItemVar, Param1, Param2, Param3: OLEVariant; ItemVar := CoClass.Create; ComObject.Collection.Add(ItemVar, Param1, Param2, Param3); Any Clues? Regards Neven N.K. MacEwan B.E. E&E Ph 649 574 0027 Fax 649 570 2706 [EMAIL PROTECTED] "A truth denied the light of action will wither to a promise, propaganda and then a lie" --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz To UnSub, send email to: [EMAIL PROTECTED] with body of "unsubscribe delphi"