Using C++ DLLs with different compiler versions

Question

This question is related to \"How to make consistent dll binaries across VS versions ?\"

• We have applications and DLLs built with VC6 and a new application bui

Answer 1

There are other things you need to consider too, such as which run-times are being used by the various libraries. If no objects are being shared that's fine, but that seems quite unlikely at first glance.
Chris Becker's suggestions are pretty accurate - using an actual COM interface may help you get the binary compatibility you need. Your mileage may vary :)