private unsafe static extern uint CreateThread(

        uint dwHandle = CreateThread(null, (uint)StackSize, ThreadFunc, lpParam, 0, out lpThreadID);

static extern IntPtr CreateThread([In] ref SECURITY_ATTRIBUTES

Try System.Threading.Thread.Start. It doesn't give you all the control of directly calling CreateThread, (such as specifing the flags), but it will get you a vanilla thread to spin up.

        CreateThread = 0x00000002,

    CreateThread = &H2

    CreateThread = 0x0002,

    AllAccess = CreateThread Or DuplicateHandle Or QueryInformation Or SetInformation Or Terminate Or VMOperation Or VMRead Or VMWrite Or Synchronize

    CreateThread = &H2

     CreateThread = 0x00000002

    CreateThread = 0x00000002,

  public CREATE_THREAD_DEBUG_INFO CreateThread