Changing folder security permisions via Win32 API

CDacl oDacl;
AtlGetDacl(strFolder, SE_FILE_OBJECT, &oDacl);
oDacl.RemoveAces(Sids::Users()); // Remove existing "Users" access
oDacl.AddAllowedAce(Sids::Users(), FILE_ALL_ACCESS, CONTAINER_INHERIT_ACE | OBJECT_INHERIT_ACE);
AtlSetDacl(strFolder, SE_FILE_OBJECT, oDacl);