Needed by Realtek Sound Card hid.dll.........(Hid User Library). Needed to open Realtek's Audio Configuration Utility (soundman.exe in C:\WINDOWS) ksproxy.ax......(WDM Streaming ActiveMovie Proxy). Realtek AC'97 asks for this file when installing audio drivers newdev.dll......(Add Hardware Device Library). Realtek's Driver Installer (alcupd.exe file in C:\WINDOWS) needs this file to install drivers. I'm sure other devices need it too. RTLCPAPI.dll....RtlCPAPI Module These 3 .WAV files are also created by Realtek Sound Card. If I remove these .WAV files, they are re-created as soon as I open the Realtek Audio Control Panel (RTLCPL.EXE)...with "ALSNDMGR.WAV" being the exception. ALSNDMGR.WAV is the one .WAV file that has so far not re-created itself. I have ALSNDMGR.WAV deleted in PART 10. ALSNDMGR.WAV BuzzingBee.wav LoopyMusic.wav I found this in a sticky tread but what I going to keep I did not understand what service, or what is called I need to keep. Add Hardware Device Library) Hid User Library WDM Streaming ActiveMovie It is this?