楼主下载错了补丁包,SQL Server 2000 SP4有三个补丁,另外两个分别是MSDE 2000和Analysis Services 2000的,楼主下了后者。
正确的SQL Server 2000中文版SP4链接: http://www.microsoft.com/downloads/info.aspx?na=46&p=6&SrcDisplayLang=zh-cn&SrcCategoryId=&SrcFamilyId=8e2dfc8d-c20e-4446-99a9-b7f0213f8bc5&u=http%3a%2f%2fdownload.microsoft.com%2fdownload%2f9%2fb%2ff%2f9bff6646-2cdb-4069-ada0-548be9cb9338%2fSQL2000-KB884525-SP4-x86-CHS.EXE&oRef=http%3a%2f%2fwww.google.com%2fsearch%3fhl%3dzh-CN%26q%3dSQL%2bServer%2b2000%2bSP4%26lr%3dlang_zh-CN
http://www.microsoft.com/downloads/info.aspx?na=46&p=6&SrcDisplayLang=zh-cn&SrcCategoryId=&SrcFamilyId=8e2dfc8d-c20e-4446-99a9-b7f0213f8bc5&u=http%3a%2f%2fdownload.microsoft.com%2fdownload%2f9%2fb%2ff%2f9bff6646-2cdb-4069-ada0-548be9cb9338%2fSQL2000-KB884525-SP4-x86-CHS.EXE&oRef=http%3a%2f%2fwww.google.com%2fsearch%3fhl%3dzh-CN%26q%3dSQL%2bServer%2b2000%2bSP4%26lr%3dlang_zh-CN