msdn的对这个参数的说明
dwCreationFlags [in]
The flags that control the priority class and the creation of the process. For a list of values, see Process Creation Flags.
对Process Creation Flags一个值的说明
CREATE_PRESERVE_CODE_AUTHZ_LEVEL 0x02000000
Allows the caller to execute a child process that bypasses the process restrictions that would normally be applied automatically to the process.
PS:没有试验过