There's a new version up, still at
http://www.geocities.com/raceprouk/msn/plugins.htm. This time, I haven't posted a direct link, as there is now a support package (5KB zip file) containing the VB source to my AllYourBase plugin v2, as well as a 10-minute ToastsGalore in C++. Both these are covered in the guide, and together they cover all the functions available.
As a side note, should I include an example that utilises the Unicode capabilities of C++? Also, if anyone has written a plugin that uses the Messenger objects Plus! provides, I'd be very grateful if I could get some sample code to put in the guide. All contributors of code will be fully credited.
Oh yes, I have tested the code; it all works. In fact, some of you may have AllYourBase v2 installed.