在Windows上使用Microsoft SQL Server安装Plesk 11时，您可能会遇到此问题：

Unable to install the "mssql2008_configurator-1.0.noarch"; package. The following could cause the installation failure: 1) mssql2008_configurator-1.0.noarch: No suitable solutions were found for the "msi45 >= 4.5.0000.0000"; dependency. 2) The dependency for "msi45 >= 4.5.0000.0000"; required by the "mssql2008_configurator-1.0.noarch"; package could not be resolved.

这是因为MSSQL安装缺少Windows Installer 4.5 [KB942288]组件。

手动下载/安装并重新启动，然后重新启动Plesk安装。

support.microsoft.com/kb/942288