I'm working on the next releases of the licensed version of the socket server framework, and I now have continuous integration (of a sort) so my build and test problems are being minimised... BUT... Keeping Visual Studio 6 support in the framework is becoming a bit of a mission. It's mostly simple template stuff that fails but I find that I keep having to work around VC6 issues.
I'm proposing to drop VC6 support from version 5.3 of the licensed framework. The next release, 5.2.1 (which adds VS2008 support) will be the last version with VC6 support included as standard. How much of an issue would that be for users or potential users of the framework? Note that the free version will continue to support VC6 as it's unlikely to be changed in any major way.