问题描述：
==========
因为需要，在Windows Server 2003 Sp2 安装SQL Server 2008 Management Studio Express，但一直无法安装成功，安装日志信息如下：

Overall summary:
  Final result:                  SQL Server 安装失败。若要继续操作，请调查失败原因，更正问题，卸载 SQL Server，然后重新运行 SQL Server 安装程序。
  Exit code (Decimal):           -2068643839
  Exit facility code:            1203
  Exit error code:               1
  Exit message:                  SQL Server 安装失败。若要继续操作，请调查失败原因，更正问题，卸载 SQL Server，然后重新运行 SQL Server 安装程序。
  Start time:                    2010-05-22 00:56:32
  End time:                      2010-05-22 01:00:52
  Requested action:              Install
  Log with failure:              C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20100522_005534\Msxml6_Cpu32_1.log
  Exception help link:           http://go.microsoft.com/fwlink?LinkId=20476&ProdName=Microsoft+SQL+Server&Evtsrc="/setup.rll&";EvtID=50000&ProdVer=10.0.1766.0

Machine Properties:
  Machine name:                  WEB01
  Machine processor count:       2
  OS version:                    Windows Server 2003
  OS service pack:               Service Pack 2
  OS region:                     中华人民共和国
  OS language:                   中文(中华人民共和国)
  OS architecture:               x86
  Process architecture:          32 位
  OS clustered:                  否

Product features discovered:
  Product              Instance             Instance ID                    Feature                                  Language             Edition              Version         Clustered

Package properties:
  Description:                   SQL Server Database Services 2008
  SQLProductFamilyCode:          {628F8F38-600E-493D-9946-F4178F20A8A9}
  ProductName:                   SQL2008
  Type:                          RTM
  Version:                       10
  SPLevel:                       0
  Installation location:         h:\a3ee51ff98a004b80e5bf0b7\x86\setup\
  Installation edition:          EXPRESS_ADVANCED

用户输入设置:
  ACTION:                        Install
  ADDCURRENTUSERASSQLADMIN:      False
  AGTSVCACCOUNT:                 <空>
  AGTSVCPASSWORD:                *****
  AGTSVCSTARTUPTYPE:             Manual
  ASBACKUPDIR:                   Backup
  ASCOLLATION:                   Latin1_General_CI_AS
  ASCONFIGDIR:                   Config
  ASDATADIR:                     Data
  ASDOMAINGROUP:                 <空>
  ASLOGDIR:                      Log
  ASPROVIDERMSOLAP:              1
  ASSVCACCOUNT:                  <空>
  ASSVCPASSWORD:                 *****
  ASSVCSTARTUPTYPE:              Automatic
  ASSYSADMINACCOUNTS:            <空>
  ASTEMPDIR:                     Temp
  BROWSERSVCSTARTUPTYPE:         Disabled
  CONFIGURATIONFILE:             C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20100522_005534\ConfigurationFile.ini
  ENABLERANU:                    False
  ERRORREPORTING:                False
  FEATURES:                      SSMS
  FILESTREAMLEVEL:               0
  FILESTREAMSHARENAME:           <空>
  FTSVCACCOUNT:                  <空>
  FTSVCPASSWORD:                 *****
  HELP:                          False
  INDICATEPROGRESS:              False
  INSTALLSHAREDDIR:              F:\Program Files\Microsoft SQL Server\
  INSTALLSHAREDWOWDIR:           C:\Program Files\Microsoft SQL Server\
  INSTALLSQLDATADIR:             <空>
  INSTANCEDIR:                   C:\Program Files\Microsoft SQL Server\
  INSTANCEID:                    <空>
  INSTANCENAME:                  <空>
  ISSVCACCOUNT:                  NT AUTHORITY\NetworkService
  ISSVCPASSWORD:                 *****
  ISSVCSTARTUPTYPE:              Automatic
  MEDIASOURCE:                   h:\a3ee51ff98a004b80e5bf0b7\
  NPENABLED:                     0
  PID:                           *****
  QUIET:                         False
  QUIETSIMPLE:                   False
  RSINSTALLMODE:                 FilesOnlyMode
  RSSVCACCOUNT:                  <空>
  RSSVCPASSWORD:                 *****
  RSSVCSTARTUPTYPE:              Automatic
  SAPWD:                         *****
  SECURITYMODE:                  <空>
  SQLBACKUPDIR:                  <空>
  SQLCOLLATION:                  SQL_Latin1_General_CP1_CI_AS
  SQLSVCACCOUNT:                 <空>
  SQLSVCPASSWORD:                *****
  SQLSVCSTARTUPTYPE:             Automatic
  SQLSYSADMINACCOUNTS:           <空>
  SQLTEMPDBDIR:                  <空>
  SQLTEMPDBLOGDIR:               <空>
  SQLUSERDBDIR:                  <空>
  SQLUSERDBLOGDIR:               <空>
  SQMREPORTING:                  False
  TCPENABLED:                    0
  X86:                           False

  Configuration file:            C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20100522_005534\ConfigurationFile.ini

Detailed results:
  Feature:                       管理工具 - 基本
  Status:                        失败: 请查看日志了解详细信息
  MSI status:                    失败: 请查看下面的详细信息
  MSI error code:                0x5EBE5729
  MSI log file location:         C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20100522_005534\Msxml6_Cpu32_1.log
  MSI error description:        
  Configuration status:          已通过

Rules with failures:

Global rules:

Scenario specific rules:

Rules report file:               C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20100522_005534\SystemConfigurationCheck_Report.htm


原因：
==========
SQL Server 2008用的 MSXML 是 6.1，所以 SQL Server 2008 的安装程序执行过程中，发现系统上有 更新MSXML 6 SP2的版本，就放弃继续安装，而非略过。

解决办法：
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经过多方查找和验证，最后是kb968749给了我帮助，也就是在安装和删除程序中删除----MSXML 6 SP2 ，等安装完居SQL 2008后再重打这个补丁。