Two versions of one program in one Visual Studio 2012 project?

I have a Visual Studio 2012 C#, Winforms program.

I want to make a slightly advanced version of this program without having to create a new project and without losing the current version.

I'll need to be able to switch back and forth to publish both versions.

How can I do this please?
NDennisVAsked:
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bbaoIT ConsultantCommented:
> to switch back and forth to publish both versions.

basically, that just means you need to maintain the two versions at the same time.

therefore, make a copy of the source version, rename it, open and edit the copied version as if it is a new different project.

make it simple and clear.
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Éric MoreauSenior .Net ConsultantCommented:
if the changes are not to major, you could have a single solution and use conditional compilations: http://msdn.microsoft.com/en-us/library/aa691094(v=vs.71).aspx
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NDennisVAuthor Commented:
Give me a few days to see if this works Eric Moreau.
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NDennisVAuthor Commented:
Thank you
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