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----Please wait while Windows installer configures ArcGIS Desktop
Error Message错误信息
When launching ArcMap or ArcCatalog the Windows MSI installer launches and tries to repair the ArcGIS Desktop installation. The following message displays:
"Please wait while Windows installer configures ArcGIS Desktop."
If the above message displays, open Event Viewer and perform the following steps:
1. Click Start > Run.
2. Type ‘eventvwr‘.
3. Select Applications.
4. Look for entries with ‘MsiInstaller‘ under the Source column.
Double-click on the entry with ‘MsiInstaller‘ and the following error message displays: "Detection of product ‘{1F34839E-4826-4B64-B1B3-42E5AE8DEC5A}‘, feature ‘MicrosoftMsms‘, component ‘{303994BA-6487-47AE-AF1D-7AF6088EEBDB}‘ failed. The resource ‘C:\WINDOWS\WinSxS\x86_Microsoft.MSXML2_6bd6b9abf345378f_4.20.9818.0_x-ww_8ff50c5d\msxml4.dll‘ does not exist."
Cause
A shared component that ArcGIS Desktop and Microsoft use is missing. MSXML4.dll is required by ArcGIS Desktop and if the program cannot find this file, it begins to repair the installation.
Solution or Workaround
1.Open Windows Explorer and browse to C:\WINDOWS\WinSxS\x86_Microsoft.MSXML2_6bd6b9abf345378f_4.20.9818.0_x-ww_8ff50c5d.
2.If the directory cannot be found, proceed to the next step. If the directory exists, delete it and proceed to the next step.
3.Open a Web browser and go to the Microsoft link in Related Information below.
4.Download and install MSXML 4 Service Pack 2.
NOTE
&S226; If MSXML 4 Service Pack 2 is already installed, download again&S226; Download ‘msxml.msi’ only&S226; If this service pack was previously installed, an error message occurs during installation. This is expected; no action is required
5.Once finished, run ArcMap again and see if the problem is corrected.
最简单的方法（by 海龙）
下载http://www.xdowns.com/soft/184/dll/2008/Soft_43653.html中的msxml4.dll，搜索‘C:\WINDOWS\WinSxS\x86_Microsoft.MSXML2_6bd6b9abf345378f_4.20.9818.0_x-ww_8ff50c5d\这个文件夹，把msxml4.dll放入这个目录内，再次运行arcmap，完美运行。
解决ArcGIS安装之后出现的Windows installer configures问题
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原文地址：http://www.cnblogs.com/jhlong/p/5391130.html
