在使用SQL Server 2008 R2时遇到这样一个问题，在SQL Server Agent >> Jobs中新建与修改步骤时出现下面的错误：
TITLE: Microsoft SQL Server Management Studio
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Creating an instance of the COM component with CLSID {AA40D1D6-CAEF-4A56-B9BB-D0D3DC976BA2} from the IClassFactory failed due to the following error: c001f011. (Microsoft.SqlServer.ManagedDTS)
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ADDITIONAL INFORMATION:
Creating an instance of the COM component with CLSID {AA40D1D6-CAEF-4A56-B9BB-D0D3DC976BA2} from the IClassFactory failed due to the following error: c001f011. (Microsoft.SqlServer.ManagedDTS)
解决方法：
在命令行中运行下面的命令：
c:\windows\system32\regsvr32 "c:\Program Files\Microsoft SQL Server\100\DTS\Binn\dts.dll"
c:\windows\syswow64\regsvr32 "c:\Program Files (x86)\Microsoft SQL Server\100\DTS\Binn\dts.dll"
然后重新打开Microsoft SQL Server Management Studio。
注：在使用过程中有时还会出现上述错误，解决方法是重新打开Management Studio。
参考文文章：
SSMS : Can no longer create or edit job steps