>I intend to use public variable to store number of records counted to limit my demo software
>
>Does anybody know if they are stored in the memory of PC and can be easily changed by user ?
>
>
>Moises

Why you can not store it as a property of your main application object? The public variable will be in memory, but I don't think it could be changed outside of your application (except for decompiling or somehow hacking into exe).