MIDL error: 'annotation'

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A colleage recently got this error while compiling unknown.idl:

 

1>C:\Program Files\Microsoft SDKs\Windows\v6.0\Include\unknwn.idl(108) : error MIDL2025 : syntax error : expecting ] or , near "annotation"
1>C:\Program Files\Microsoft SDKs\Windows\v6.0\Include\unknwn.idl(108) : error MIDL2026 : cannot recover from earlier syntax errors; aborting compilation

 

If you get this error, you are using a new version of the Windows headers with an older version of the MIDL compiler.

 

Fix:

 

1. Make sure you installed the MIDL compiler when you installed the latest Windows SDK. It should appear under "Program Files\Microsoft SDKs\Windows\v6.0\Bin".

 

Note: To install the MIDL compiler, you need to select Developer Tools / Windows Development Tools / Win32 Development Tools in the Windows SDK setup wizard. (At least, as of RC1.)

 

2. In Visual Studio, under Tools > Options > Projects and Solutions > VC++ Directories > Executable Files, add

x:\Program Files\Microsoft SDKs\Windows\v6.0\bin

to the top of the list.

 

 

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