NVIDIA GPU Computing SDK 4.0 Browser exception An unhandled win32 exception occurred in browser.exe

I installed the following:
devdriver_4.0_winxp_64_270.81_general.exe
gpucomputingsdk_4.0.19_win_64.exe
cudatools_4.0.17_win_64.msi
cudatoolkit_4.0.17_win_64.msi

on a Windows XP Professional x64 Edition SP2 system with a GeForce GTX480 GPU. When I tried to run NVIDIA GPU Computing SDK 4.0 Browser, the browser didn’t start, and there was a dialog box that said "An unhandled win32 exception occurred in browser.exe [2044]."with the title “Visual Studio Just-In-Time Debugger”

What’s wrong?

Additional info:
I have Visual Studio 2005 installed and .NET Framework 3.5 SP1

Thank you.