Error message on launching Management Studio (and other tools in SQL 2005)

We have seen many customers call in for this issue - launching SQL Server 2005 Tools (like Management Studio, Business Intelligence Studio) throws:


Unhandled exception has occurred in your application. If you click Continue, the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately.

Input string was not in a correct format.


The above error message or its variations are caused primarily due to non-empty or incorrect value in the registry key:


HKEY_CURRENT_USERControl PanelInternationalsPositiveSign


We have documented this issue and its resolution in KB 919236.




POSTED BY : Sanchan Saxena

Comments (2)
  1. Michael Mirzoyan says:

    I have the same unhandled exception error when starting Reporting Services Configuration tool, and trying to connect to a database.

    But, instead of ‘Input string was not in a correct format’

    I have the string ‘Not found’

    I don’t have any value in sPositiveSign

    Did anybody have the same problem?

  2. Recently, I blogged about an issue with SQL Server 2005 tools. You might get the below error when using

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