double有简写吗:我打开的任何窗口再任务栏上都没有显示，但快捷图标等就能显示，曾在在任务栏属性和任务管理器调都没用

去这里下个修复工具试 下
任务栏修复工具（修复任务栏没显示等任务栏问题）
http://post.baidu.com/f?kz=107635970

第四个

或者采用下面方法，自己做个脚本来修复
打开记事本将保存为fix.vbs,格式为所有文件。。双击运行

'xp_taskbar_desktop_fixall.vbs - Repairs the Taskbar when minimized programs don't show.

'?Kelly Theriot and Doug Knox - 8/22/2003

'翻译：Smallfrogs。翻译内容：将英文提示改为简体中文

'来源：Microsoft Windows XP NewsGroup

Set WSHShell = WScript.CreateObject("WScript.Shell")

Message = "本脚本用于修复Windows XP中当最小化程序时，无法在任务栏显示图标的问题。"& vbCR & vbCR

Message = Message & "为了正常工作，本脚本将关闭和重启 Windows Explorer 外壳，这个操作不会损坏你的系统。" & vbCR & vbCR

Message = Message & "请关闭所有杀毒软件的实时监控！并保存所有打开的文件。"& vbCR & vbCR

Message = Message & "是否继续？"

X = MsgBox(Message, vbYesNo+vbExclamation, "注意")

If X = 6 Then

On Error Resume Next

WshShell.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\StuckRects2\"

WshShell.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\StreamsMRU\"

WshShell.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams\Desktop\"

WshShell.RegDelete "HKCU\Software\Microsoft\Internet Explorer\Explorer Bars\{32683183-48a0-441b-a342-7c2a440a9478}\BarSize"

P1 = "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\"

WshShell.RegWrite p1 & "NoBandCustomize", 0, "REG_DWORD"

WshShell.RegWrite p1 & "NoMovingBands", 0, "REG_DWORD"

WshShell.RegWrite p1 & "NoCloseDragDropBands", 0, "REG_DWORD"

WshShell.RegWrite p1 & "NoSetTaskbar", 0, "REG_DWORD"

WshShell.RegWrite p1 & "NoToolbarsOnTaskbar", 0, "REG_DWORD"

WshShell.RegWrite p1 & "NoSaveSettings",0,"REG_DWORD"

WshShell.RegWrite p1 & "NoToolbarsOnTaskbar", 0, "REG_DWORD"

WshShell.RegWrite p1 & "NoSetTaskbar",0,"REG_DWORD"

WshShell.RegWrite p1 & "NoActiveDesktop",0,"REG_DWORD"

WshShell.RegWrite p1 & "ClassicShell",0,"REG_DWORD"

p1 = "HKCU\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\LocalUser\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\"

WshShell.RegWrite p1 & "NoCloseDragDropBands", 0, "REG_DWORD"

WshShell.RegDelete p1 & "NoMovingBands"

p1 = "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell"

WshShell.RegWrite p1, "explorer.exe", "REG_SZ"

p1 = "HKCU\Software\Microsoft\Internet Explorer\Explorer Bars\{32683183-48a0-441b-a342-7c2a440a9478}\"

WshShell.RegDelete p1 & "BarSize"

WshShell.RegWrite p1, "Media Band", "REG_SZ"

On Error Goto 0

For Each Process in GetObject("winmgmts:"). _

ExecQuery ("select * from Win32_Process where name='explorer.exe'")

Process.terminate(0)

Next

MsgBox "完成！" & vbcr & vbcr & "?Kelly Theriot and Doug Knox", 4096, "完成"

Else

MsgBox "没有对你的系统进行任何改变。" & vbcr & vbcr & "?Kelly Theriot and Doug Knox", 4096, "用户取消了"

End If

1.进行系用还原；
2.有可能是病毒，下载木马杀客在安全模式下查杀后重启。