Responses to a couple issues: I used to teach OOP using C++ in college and although I came up with examples using multiple inheritance I never encountered a real-world situation where it was necessary. IMHO, I don't think multiple inheritance is all it's cracked up to be. As to the difference between C# and VB.Net, I've programmed in both (moreso in VB.Net) and found very few differences between them. As well, the more current the version of the .Net framework you use (ignoring syntax), the fewer differences exist. Having said that, there is one major difference I have found: Among the developer community - at least in the region I'm living in - there appears to be a tremendous bias against developing in VB.Net. I suspect this is a throwback to the earlier versions of VB. I've found that 95% of the programs I wrote in C++ could easily be written in either C# or VB.Net and my personal preference would be VB.Net. But when I list VB.Net as my second language on a resume I'm usually declined interviews - the employers appear to be avoiding VB coders. GEAK