How to know VirtualStore is applied in my application

I am developing an application which will run on Windows OS. However, when run it on Windows Vista, my application's settings is stored in VirtualStore. How to 开发者_StackOverflow社区check VirtualStore is being applied in my application (I need a function to check and it must ok on XP, Vista).

And how to get the path of Virtual Store of my application.

Thanks.

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My workaround...

You get the user Appdata path:

String appdata = System.Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);

Add VirtualStore folder to path:

String VirtualStoreRoot = appdata + "\\VirtualStore";

Create folder:

String backuppath = "C:\\Program Files\\Progname\\backup";
Directory.CreateDirectory(backuppath);

Check created in VirtualStore

String newpath = VirtualStoreRoot + backuppath.Substring(2);
if (Directory.Exists(newpath)){
   backuppath = newpath;
}

I found another stuff:

Isolated Storage with .NET