嗨 各位
我找到問題的來源了
呼 花了我兩天時間 而且我確定是ATI MMC安裝程式的問題
關鍵就在 Registry 裡面
我貼出我安裝 MMC 前後以下Registry裡的變化
old 打頭的為安裝MMC之前的值
new 打頭的為安裝MMC之後的值
各位可以注意到MMC把許多Driver檔名的
後面兩個字元截掉
所以windows就找不到這些encoder跟decoder
的driver, 當然裡面也含有控制台那個音量
控制的driver
只要把值都改回來就可以了
我是在安裝前先把Registry做備份
安裝後再作比較抓出來的
真的是累死我了
害我兩天上班都遲到...

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32]
old "midi"="wdmaud.drv"
new "midi"="wdmaud.d"
old "midimapper"="midimap.dll"
new "midimapper"="midimap.d"
old "mixer"="wdmaud.drv"
new "mixer"="wdmaud.d"
old "msacm.iac2"="C:\\WINNT\\System32\\iac25_32.ax"
new "msacm.iac2"="C:\\WINNT\\System32\\iac25_32."
old "msacm.imaadpcm"="imaadp32.acm"
new "msacm.imaadpcm"="imaadp32.a"
old "msacm.lhacm"="lhacm.acm"
new "msacm.lhacm"="lhacm.a"
old "msacm.msadpcm"="msadp32.acm"
new "msacm.msadpcm"="msadp32.a"
old "msacm.msg711"="msg711.acm"
new "msacm.msg711"="msg711.a"
old "msacm.msg723"="msg723.acm"
new "msacm.msg723"="msg723.a"
old "msacm.msgsm610"="msgsm32.acm"
new "msacm.msgsm610"="msgsm32.a"
old "msacm.trspch"="tssoft32.acm"
new "msacm.trspch"="tssoft32.a"
"MSVideo8"="VfWWDM32.dll"
old "vidc.cvid"="iccvid.dll"
new "vidc.cvid"="iccvid.d"
"VIDC.DRAW"="DVIDEO.D"
old "vidc.I420"="msh263.drv"
new "vidc.I420"="msh263.d"
old "vidc.iv31"="ir32_32.dll"
new "vidc.iv31"="ir32_32.d"
old "vidc.iv32"="ir32_32.dll"
new "vidc.iv32"="ir32_32.d"
old "vidc.iv50"="ir50_32.dll"
new "vidc.iv50"="ir50_32.d"
old "vidc.M261"="msh261.drv"
new "vidc.M261"="msh261.d"
old "vidc.M263"="msh263.drv"
new "vidc.M263"="msh263.d"
old "vidc.mrle"="msrle32.dll"
new "vidc.mrle"="msrle32.d"
old "vidc.msvc"="msvidc32.dll"
new "vidc.msvc"="msvidc32.d"
"VIDC.UYVY"="C:\\WINNT\\System32\\msyuv.DL"
"VIDC.VCR1"="ATIVCR1.D"
"VIDC.VCR2"="ATIVCR2.D"
"VIDC.YUY2"="ATIVYUY.D"
"VIDC.YV12"="ATIYUV12.D"
"VIDC.YVU9"="IYVU9_32.D"
old "wave"="wdmaud.drv"
new "wave"="wdmaud.d"
old "wavemapper"="msacm32.drv"
new "wavemapper"="msacm32.d"