请教高手,为什么安装sqlserver2000失败?

Win2000 advanced server安装SQL Server 2000 个人版出错,日志记录如下:
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22:06:15 Process Exit Code: (-1)
22:06:20 安装程序配置服务器失败。参考服务器错误日志和 C:\WINNT\sqlstp.log 了解更多信息。
22:06:21 Action CleanUpInstall:
22:06:21 C:\WINNT\TEMP\SqlSetup\Bin\scm.exe -Silent 1 -Action 4 -Service SQLSERVERAGENT
22:06:21 Process Exit Code: (1060) 指定的服务并未以已安装的服务存在。

22:06:21 C:\WINNT\TEMP\SqlSetup\Bin\scm.exe -Silent 1 -Action 4 -Service MSSQLSERVER
22:06:21 Process Exit Code: (0)
22:06:21 StatsGenerate returned: 2
22:06:21 StatsGenerate (0x0,0x1,0xf00000,0x300,2052,303,0x0,0x1,0,0,0
22:06:21 StatsGenerate -1,Administrator)
22:06:21 Installation Failed.

请教高手是何原因???