Is this the right forum to report a driver bug? I will certainly report this where needed. I have an MS Wireless Mobile Mouse 3500 connected to a multi boot machine that runs, among others, WinXP and Win7. I have noticed that when I run Win7 and then reboot to WinXP, the mouse wheel is 'too hot', scrolling far too fast. The only way to fix this is to do a power off reset of the mouse (meaning the computer). I wrote some code with Visual Studio and looked at the WMMOUSEWHEEL event.
Buy Microsoft Wireless Mobile Mouse 3500 for Business: Mice - Amazon.com ✓ FREE. This mouse or it's driver software seems to have serious issue.
I discovered that the wheel delta, HIWORD(wParam), is normally +/- 120, but it changes to +/- 1920 when I run Win7 and then come back to WinXP. Running the same code inside of Win7, I get +/- 120 as expected, but then I get the 16 times multiplier when I go back to WinXP without a power off/on reset. I suspect that a device register is being changed in the Win7 driver. What I really suspect is that the register is not being initialized properly in the WinXP driver. Now that I have explained this, again, is this the right forum to report this bug to MS, or should I go elsewhere, and if elsewhere, where?