Append to my last post.
When I boot up with this sound driver installed, I get a black screen, just after inserting the password and logging in. The solution was restart to the safety mode, remove the driver, boot up again and install back the driver. I know, that was annoying
until today when I found that, when you get the black screen after the login, if you click around in the dark, it will show up a error message box (I can´t remember the message in it, I think it was something like "DSound UP not succeeded" or something like that). Click OK in the Message Box and the boot will resume normally. BTW, this error looks very bad since I can play Need for Speed Underground and music in the Windows Media Player normally, but the Flight Simulator X will be quiet
. I still think that this driver is too buggy to be used in Windows 7, but it looks the best option to get, at least, some whispering from the PC. If anyone has a better solution, plz, tell me.