Hello, In my app using NB and have a few questions on types. In one function I have an size_t *arg for an argument. Is NBUInt64 proper for this argument? I also have a DATE which uses OLE Automation date format which is described as: IO2GRequestFactory.fillMarketDataSnapshotRequestTime """ An OLE Automation date is implemented as a floating-point number whose integral component is the number of days before or after midnight, 30 December 1899, and whose fractional component represents the time on that day divided by 24. """ Would NBUInt64 be best or is NBUInt32 a better fit? I haven't seen a method for this particular date epoch, but I can easily write the method to handle conversion. Thanks for any wisdom and guidance. Jimmie