QuickTimeとかRealPlayerをインストールしました?
他のプレーヤーで関連付けを変更すると、
PerceivedType項目が削除されちゃうのかもしれません。
私のは、ほとんどのメディアファイルの
PerceivedType が削除されちゃってました。
おそらく、そちらの
ほとんどのメディアファイル(avi midi wma mpeg等)の
PerceivedTypeが無くなっていることでしょう。
確認してみてください。
それらを、XP導入時の構成に戻す(Perceivedを追加)
するスクリプトを作成しました。
メモ帳を開いて以下の文を貼り付けてください。
----この下から----
var WshShell=new ActiveXObject("WScript.Shell");
WshShell.RegWrite("HKCR\\.asf\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.asx\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.aif\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.aifc\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.aiff\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.au\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.avi\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.ivf\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.m1v\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.m3u\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.mid\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.midi\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.mp2\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.mp2v\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.mp3\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.mpa\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.mpe\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.mpeg\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.mpg\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.mpv2\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.rmi\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.snd\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.wav\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.wax\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.wm\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.wma\\PerceivedType","audio","REG_SZ");
WshShell.RegWrite("HKCR\\.wmp\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.wmv\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.wmx\\PerceivedType","video","REG_SZ");
WshShell.RegWrite("HKCR\\.wvx\\PerceivedType","video","REG_SZ");
----この上まで----
メモ帳で「ファイル」→「名前を付けて保存」をクリック
ittochan.js としてデスクトップに保存して
デスクトップにできた ittochan.js をダブルクリックしてください。
お礼
9件もありがとうございました。(^o^) 今までの回答者の中でたぶん最高の方です。9という数字が。