原来windbg好好地。出差几天回来，就发现windbg无法下载ieframe.dll啦。找了同事的电脑，试了都可以下载ieframe.dll。
开启!sym -noisy，无法下载的文件信息如下：
SYMSRV: e:\ossymbol\Flash.pdb\05A034AC34DA4E1FBEF9E31B91D23DE71\Flash.pdb not foundSYMSRV: http://msdl.microsoft.com/download/symbols/Flash.pdb/05A034AC34DA4E1FBEF9E31B91D23DE71/Flash.pdb not foundDBGHELP: C:\Windows\system32\Macromed\Flash\Flash.pdb - file not foundDBGHELP: Flash.pdb - file not found*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\system32\Macromed\Flash\Flash10x.ocx - DBGHELP: Flash10x - export symbols.SYMSRV: e:\ossymbol\jscript9.pdb\77E88D3E7C5544E185F174404D7F3D572\jscript9.pdb not foundSYMSRV: http://msdl.microsoft.com/download/symbols/jscript9.pdb/77E88D3E7C5544E185F174404D7F3D572/jscript9.pdb not foundDBGHELP: C:\Windows\System32\jscript9.pdb - file not foundDBGHELP: jscript9.pdb - file not found*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\System32\jscript9.dll - DBGHELP: jscript9 - export symbols.SYMSRV: e:\ossymbol\mshtml.pdb\B2F41DA77F364D7B8CB8EAD9BC91A2032\mshtml.pdb not foundSYMSRV: http://msdl.microsoft.com/download/symbols/mshtml.pdb/B2F41DA77F364D7B8CB8EAD9BC91A2032/mshtml.pdb not foundDBGHELP: C:\Windows\system32\mshtml.pdb - file not foundDBGHELP: mshtml.pdb - file not found*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\system32\MSHTML.dll - DBGHELP: MSHTML - export symbols
SYMSRV: /download/symbols/wldap32.pdb/73663B9E1D7A4D838A24EE4D1B5B8CAD2/wldap32.pdb 函数不正确。SYMSRV: wldap32.pdb from http://msdl.microsoft.com/download/symbols: 175758 bytes - 0 percentSYMSRV: /download/symbols/wldap32.pdb/73663B9E1D7A4D838A24EE4D1B5B8CAD2/wldap32.pdb 函数不正确。DBGHELP: C:\Windows\system32\wldap32.pdb - file not foundDBGHELP: wldap32.pdb - file not found*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\system32\WLDAP32.dll - DBGHELP: WLDAP32 - export symbols
类似ieframe.dll和mshtml.dll应该都有符号的？重装windbg都不行。