Hi DonPogi,
This is an issue that seems to be a continuing problem with ActiveX 64-bit integers. I would encourage you to submit a product feedback at www.ni.com/support to get your information to our R&D department so they are aware of the issue.
A possible workaround is to put the 64-bit data into a wrapper to convert the datatype to one of the supported types. More information about these datatypes and what is supported can be found at the following url:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconcreatinginterfacesforusewithimplementsstatement.asp
Thank you for the information, and let me know if there is anything else I can do for you on this.
Regards,
Stephen S.
National Instruments
Applications Engineering