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关掉64位系统中32位程序的目录重定向

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

关掉64位系统中32位程序的目录重定向