>good method for swapping the numbers.
No, it's not. It's brittle, often slower than the conventional method, and due to compiler optimizations the chances that it saves memory over the equivalent swap with a temporary are actually quite slim. This trick may have been useful twenty or thirty years ago, but now it's just a stupid way for stupid people to show of their knowledge of stupid trivia.
I Developed application in C# with crystal reports and created setup file in third party (Advance) Installer.When i installed my application on client system application is working but ...