Create AddOn Installer with VS 2008 Correctly

Hi Experts,

I am a newbie in SAP B1 SDK.

I have created an AddOn using VS 2008, and make .ard file with AddOn RegDataGen.exe, but everytime I want to install it from B1Client I have the following error : "Unable to locate application file 'Setuptest.msi'". I have placed the file "Setup.msi" in the same folder with the .ard file and setup.exe...

Anyone can help me?? Or guide me about a correct way to create AddOn Installer and .ard file??