安装SQL Server 2005时弹出对话框，提示：
事务管理器不可用
（英文版本：The Transaction Manager is not available）
TITLE: Microsoft SQL Server 2005 Setup
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Failed to install and configure assemblies C:\Program Files\Microsoft SQL Server\90\NotificationServices\9.0.242\Bin\microsoft.sqlserver.notificationservices.dll in the COM+ catalog. Error: -2146233087
Error message: Unknown error 0x80131501
Error description: 事务管理器不可用。 (异常来自 HRESULT:0x8004D01B)
TITLE: Microsoft SQL Server 2005 Setup
------------------------------
Failed to install and configure assemblies C:\Program Files\Microsoft SQL Server\90\NotificationServices\9.0.242\Bin\microsoft.sqlserver.notificationservices.dll in the COM+ catalog. Error: -2146233087
Error message: Unknown error 0x80131501
Error description: The Transaction Manager is not available. (Exception from HRESULT: 0x8004D01B)
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进入服务管理器，启动 Distributed Transaction Coordinator 服务即可。