好用转：删除，修改注册表中需要设置权限的项-优快云博客

本文提供了一段C语言代码示例，展示了如何通过修改注册表键的权限来删除指定的USB设备注册表项。该过程涉及使用Windows API函数如SetEntriesInAcl和SetNamedSecurityInfo等。

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源地址： http://xue23.blog.163.com/blog/static/97934420068383532200/
作者博客：http://xue23.blog.163.com/

#include <Aclapi.h>#include <shlwapi.h>BOOL DeleteHardwareKey(void){ LPTSTR lpObjectName; SE_OBJECT_TYPE ObjectType;

    PACL OldDACL,NewDACL;
    PSECURITY_DESCRIPTOR SD;
    EXPLICIT_ACCESS ea;

lpObjectName = "MACHINE\\SYSTEM\\CurrentControlSet\\Enum\\Usb\\Vid_1106&Pid_0100";

ObjectType =SE_REGISTRY_KEY;

if (SetEntriesInAcl(0, NULL, NULL, &OldDACL)!=ERROR_SUCCESS)
return FALSE;

if (SetEntriesInAcl(0, NULL, NULL, &NewDACL)!=ERROR_SUCCESS)
return FALSE;

    if(GetNamedSecurityInfo(lpObjectName, ObjectType,
                          DACL_SECURITY_INFORMATION,
                          NULL, NULL,
                          &OldDACL,
                          NULL, &SD) != ERROR_SUCCESS)
           printf("指定的键不存在！");

ZeroMemory(&ea, sizeof(EXPLICIT_ACCESS));

    BuildExplicitAccessWithName(&ea,
                                "Everyone",      // name of trustee
                                GENERIC_ALL,     // type of access
                                SET_ACCESS,      // access mode
                                SUB_CONTAINERS_AND_OBJECTS_INHERIT); //让自健继承他的权限; inheritance mode

    if(SetEntriesInAcl(1, &ea, NULL, &NewDACL) != ERROR_SUCCESS)
          goto Cleanup;

      SetNamedSecurityInfo(lpObjectName, ObjectType,
          DACL_SECURITY_INFORMATION,
          NULL, NULL,
          NewDACL, NULL);

SHDeleteKey(HKEY_LOCAL_MACHINE,_T("SYSTEM\\CurrentControlSet\\Enum\\Usb\\Vid_1106&Pid_0100"));

    BuildExplicitAccessWithName(&ea,
                                "Everyone",      // name of trustee
                                GENERIC_READ,     // type of access
                                SET_ACCESS,      // access mode
                                NO_INHERITANCE); //让自健继承他的权限; inheritance mode

if(SetEntriesInAcl(1, &ea, NULL, &OldDACL) != ERROR_SUCCESS)
goto Cleanup;

     SetNamedSecurityInfo(lpObjectName, ObjectType,
          DACL_SECURITY_INFORMATION,
          NULL, NULL,
          OldDACL,
          NULL);

Cleanup:
    if(SD != NULL)
          LocalFree((HLOCAL) SD);
    if(NewDACL != NULL)
          LocalFree((HLOCAL) NewDACL);
    if(OldDACL != NULL)
          LocalFree((HLOCAL) OldDACL);

return TRUE;
}

注意：

lpObjectName = "MACHINE\\SYSTEM\\CurrentControlSet\\Enum\\Usb\\Vid_1106&Pid_0100";

和

SHDeleteKey(HKEY_LOCAL_MACHINE,_T("SYSTEM\\CurrentControlSet\\Enum\\Usb\\Vid_1106&Pid_0100"));

的区别

转载于:https://www.cnblogs.com/zkliuym/archive/2010/07/24/1784329.html