How to migrate extended store procedure 64x DLL from SQL 2005 to SQL 2008 R2 ?

Hi! all,

I need to migrate a database with extended store procedures from SQL 2005 64 bit EE to SQL Server 2008 R2 EE, the targuet os is Windows 2008 R2 EE.

I went trought the http://msdn.microsoft.com/en-us/library/ms164653(v=sql.90).aspx when I call a extended store procedure inside the dll é get :

Msg 17750, Level 16, State 0, Procedure xp_fmove, Line 1
Could not load the DLL R:\X_SP\xp_sgt_64.dll, or one of the DLLs it references. Reason: 14001(failed to retrieve text for this error. Reason: 15105).

Am i doing any thing wrong ?

Please assist me to fix the problem.

Best regards.