Saturday, August 15, 2009

SQL 2008 : Management Studio Error

Installing SQL 2008 on developer pcs I came across this when starting Management Studio.

" Unhandled exception has occurred in a component in your application. If you
click Continue, the application will ignore this error and attempt to
continue. Key not valid for use in specified state. "


Clicking 'Details' ....

" ************** Exception Text **************
System.Security.Cryptography.CryptographicException: Key not valid for use
in specified state.

at System.Security.Cryptography.ProtectedData.Unprotect(Byte[] encryptedData, Byte[] optionalEntropy, DataProtectionScope scope)

..... "

It basically means SQL 2008 is trying to use a SQL 2005 config file.

To solve this,
  1. Navigate to C:\Documents and Settings\ [username] \Application Data\Microsoft\Microsoft SQL Server\100\Tools\Shell .

  2. Rename the old RegSrvr.xml to something else e.g. RegSrvr.bak

  3. Start Management Studio again (it will recreate the file and you'll be able to add your servers again)



Link : http://www.dbtalk.net/microsoft-public-sqlserver-tools/ssms-2008-a-512328.html

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