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关掉64位系统中32位程序的目录重定向
在64位Windows系统中运行的32位程序会被系统欺骗.
例如windows\system32的目录实际是windows\syswow64目录的映射.
program files实际是program files(x86)的映射.
注册表的hkey_local_machine\software实际是hkey_local_machine\software\wow6432node子键的映射.
那么如何访问到真正的64位程序的目录和注册表呢?关掉目录重定向即可.
关闭文件的重定向:
var OldWow64RedirectionValue: LongBool; function DisableWowRedirection: Boolean; type TWow64DisableWow64FsRedirection = function(var Wow64FsEnableRedirection : LongBool): LongBool; StdCall; var hHandle: THandle; Wow64DisableWow64FsRedirection: TWow64DisableWow64FsRedirection; begin Result := true; try hHandle := GetModuleHandle(‘kernel32.dll‘); @Wow64DisableWow64FsRedirection := GetProcAddress(hHandle, ‘Wow64DisableWow64FsRedirection‘); if ((hHandle <> 0) and (@Wow64DisableWow64FsRedirection <> nil)) then Wow64DisableWow64FsRedirection(OldWow64RedirectionValue); except Result := False; end; end; function RevertWowRedirection: Boolean; type TWow64RevertWow64FsRedirection = function(var Wow64RevertWow64FsRedirection : LongBool): LongBool; StdCall; var hHandle: THandle; Wow64RevertWow64FsRedirection: TWow64RevertWow64FsRedirection; begin Result := true; try hHandle := GetModuleHandle(‘kernel32.dll‘); @Wow64RevertWow64FsRedirection := GetProcAddress(hHandle, ‘Wow64RevertWow64FsRedirection‘); if ((hHandle <> 0) and (@Wow64RevertWow64FsRedirection <> nil)) then Wow64RevertWow64FsRedirection(OldWow64RedirectionValue); except Result := False; end; end;
注册表就很简单了:
var r: TRegistry; begin r := TRegistry.Create; r.RootKey := HKEY_LOCAL_MACHINE; r.Access := r.Access or KEY_WOW64_64KEY; //注意这一行. if r.OpenKey(‘SOFTWARE\abc‘, true) then begin r.WriteString(‘test‘, ‘test‘); end; r.Free; end;
参考:http://www.raysoftware.cn/?p=131
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原文地址:http://www.cnblogs.com/findumars/p/4182831.html