how to determine what windows operating systems are compatible with my application?

[vincegrear]

Hey all
I have 3 questions. I'm almost done creating an application using Visual Studio 2012, using the visual basic language. The funny thing is, I'm not exactly sure of what version of vb I'm using to write it in.

So my first question is how do I know what version of the visual basic language I'm using? What is the difference between vb.net, and vb6?

My second question is how do I determine the minimum operating system requirement, and hardware requirements for my application? Is there an easy way to analyze my program to get all the minimum requirements? I'll need to know once I'm going to make it available for download.

It isn't a very large application, but does allow for saved sessions with text data saved, and has a few image resources.

It runs Ok on my windows 7 operating system.

My third question is, if it runs ok on my windows 7 system, will it run on windows 8?

Thanks in advance.