[HKEY_CLASSES_ROOT\Wow6432Node\CLSID\{73B7DC00-F498-4ABD-AB79-D07AFD52F395}\InProcServer32]
默认值修改为:
C:\Program Files (x86)\Common Files\Microsoft Shared\MSEnv\TextMgrP.dll
可是我原先的默认值就是这个,没什么可改的。后来,根据提示打开C:\Users\用户\AppData\Roaming\Microsoft\VisualStudio\11.0\ActivityLog.xml
查看最后一条
<entry>
<record>553</record>
<time>2017/06/10 03:36:00.225</time>
<type>Information</type>
<source>VisualStudio</source>
<description>End package load [Visual Studio COM+ Library Manager Package]</description>
<guid>{ED8979BC-B02F-4DA9-A667-D3256C36220A}</guid>
</entry>
由此发现是由于未能加载Visual Studio COM+ Library Manager Package导致的。所以去https://www.microsoft.com/en-us/download/details.aspx?id=36020下载了更新,安装后恢复正常。