适用于Windows的Plesk 11安装可能会返回以下错误：

MSI: Error! Setup is missing an installation prerequisite:
-Microsoft SQL Server 2012 System CLR Types. To continue, install SQL Server 2012 System CLR Types from http://go.microsoft.com/fwlink/?LinkID=116207 and then run the Setup operation again
Failed to install 'C:\ParallelsInstaller\parallels\PANEL-WIN_11.0.9\thirdparty-msi-Windows-any-x86_64\sqlsmo_x64.msi': Fatal error during installation. (Error code 1603)
Error: Action sequence 'install: installing MSSQL Server Management Objects...' of package 'sql-smo' has been failed with code 1603
Not all packages were installed.

这意味着您缺少Microsoft®SQLServer®2012组件的Microsoft®System CLR类型。
日志中提供的URL不存在。

单击这些链接以获取软件，进行安装并再次运行" ai.exe"。

SQLSysClrTypes.msi [x86] http://go.microsoft.com/fwlink/?LinkID=239643&clcid=0x409

SQLSysClrTypes.msi [x64] http://go.microsoft.com/fwlink/?LinkID=239644&clcid=0x409