While the 64 KB size was a serious handicap in DOS and Windows 3.x, lack of guarantee of exclusiveness was the cause of stability issues because programs sometimes overwrote each other's segments.
虽然64KB大小是DOS和Windows 3.x系统的严重障碍，但缺乏对排他性的保证是造成稳定性问题的原因，因为程序有时会彼此覆盖内存段。