common language runtime could not be loaded

Question

The VSTO project is developed using .net framework 2.0 and VSTO 2005. After deployment, A particular user is not able to open the XLT file and is getting the below error:

The common language runtime could not be loaded by ...(The workbook). Contact your system administrator for further assistance. 

The user machine has .net framework 1.1 and 2.0

Answer 1

Hello,

Please refer to this MSDN article: Troubleshooting in Office at Run Time. In this article near the start, Here I will quote the statement.
This problem causes the following error message to be displayed:
The common language runtime could not be loaded by <application>. Contact your administrator for further assistance.
The version of the Microsoft .NET Framework on the end user's computer must be the same as or later than the version on the computer that was used to develop the solution.

Please intall .NET Framework 2.0. You could download from this link: http://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en

If you have any further question, please feel free to let us know.

Best regards,
Bessie

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Answer 2

Thank you Bessie,

I have resolved it by repairing MS Office.

Thanks

Sreenivas