>HL7 (Health Level 7) is the standard for exchanging information between systems
>in Helath Care Industry. Dose anyone out there know where I can get a copy of
>activex compoent or a VCX library to parse Hl7 messages? Thanks in advance !

Check the Microsoft site: Industries:HealthCare:ActiveX for Healthcare SDK. I've worked a bit with it: it's neat, but I don't quite have my brain wrapped around it.