VC＋＋实践与提高（ActiveX）附书源码，很好的ActiveX学习资料!-VC + + Practice and improve (ActiveX) A source book, ActiveX good learning materials!

介绍COM原理，利用windows VC++开发com的步骤，是学习com的不错资料。-COM introduced the principle of the use of windows VC++ development com step is to learn the good com information.

学习MapX控件的好资料，是在VC++6.0下使用这个控件的-MapX control to learn good information is in the VC++6.0 to use this control