Hi, I am having the same problem as the other person that posted in this forum but the solution was not listed. I have a Soundmax sound card but no drivers are found. I downloaded the drivers but when I ran the install, I get "driver not found! reboot your system, and run this setup again." I uninstalled the sound card and after the reinstall it comes up as "Multimedia audio controller." I have downloaded the Adiwdm_3665 driver package for "SoundMAX Integrated Digital Audio Driver V5.12.01.3665." i even installed it on C and browsed to the folder with smwdmCH4.inf and Windows didn't recognize it. That is the only .inf file I saw in the whole folder, two of the same ones and I extracted both of them and neither worked. I don't know what else to try at this point. There must be another driver out there or something else that can be done to rectify this problem. I am open to any and all suggestions. Please help. Thank you kindly.