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narrator.exe - .NET Framework Initialization Error: Unable to find a version of the runtime to run t

When I attempt to run the above application, receive the .NET Framework Initialization Error.  Presently am running on Windows 7 with Visual Studio 2010/.NET Framework 4.0 along with .NET Framework 2.0 installed.  Also have problems attempting to connect to Hyper-V visual machines.  Here is what I'm getting in the event log for the Hyper-V problem:


Fault bucket , type 0
Event Name: CLR20r3
Response: Not available
Cab Id: 0

Problem signature:
P1: vmconnect.exe
P3: 4a5ba7eb
P4: vmconnect
P6: 4a5ba7eb
P7: 55
P8: 3c
P9: System.BadImageFormatException

Attached files:

These files may be available here:

Analysis symbol: 
Rechecking for solution: 0
Report Id: 75a4a7bd-1dd0-11e0-b61d-005056c00008
Report Status: 0


Have spent time researching other related forum posts; however, what I've looked at so far has to do with building your own application, while the problems I'm presently experiencing are due to Windows components rather than stuff I'm presently coding.  It seems like the two problems are related since they are both .NET applications, but I'm not positive.  Does anyone have any suggestions?


6 Answers Found


Answer 1

FYI, the problem seems to have started happening after installing the Windows 7/.NET Framework 4.0 SDK for 64-bit machines:




Is anyone aware of problems with this SDK?


Answer 2

Hi Roger Moore

I have found this article.

Problem:.net framework initialization error

You may try it first. Good luck to you.



Answer 3

Thanks for the info; however, the application narrator.exe is a built-in Windows component, while the article you mentioned talks about rebuilding an application the developer is working on.  Do you have any other suggestions?  TIA.

Answer 4


Have you resolved this issue? Let us know the status.

Best Regards,


Answer 5

Hi Cookie,


Please note that it still hasn't been resolved.  I've tried uninstalling all the .NET Frameworks using the dotnetfx_cleanup_tool and reinstalled .NET Framework 3.5 sp1 using the "Programs and Features->Turn Windows features on or off" control panel in Windows 7, and then installed the .NET Framework 4.0 using the Microsoft .NET Framework 4 (Standalone Installer) link found here:




Still no success.  Do you have any other suggestions?


All the best,




Answer 6


Do your all applications in visual studio meet this problem? Or only the narrator.exe ? Please create a new one see weather it comes out again.

Please read the link and pay attention to the last two replies. I can find that he used a backup application and the probem was over.


I also use Windows 7/.NET Framework 4.0 SDK for 64-bit machines.  Everything is ok. I think you need to check your progarm. Using your previous narrator.exe to try to run again.

Best Regards,



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