Exception: CryptoAPI cryptographic service ...:

The full message of the exception is: "CryptoAPI cryptographic service provider (CSP) for this implementation could not be acquired."

This exception usually occurs when Chart Control .NET is used in the Web environment. It usually generated because security settings. To fix this problem try the following: For account under which your Web Application is executed give the following rights: Read Data, Read Attributes, Read Extended Attributes, Read, Write permissions to the X:\Documents and Settings\All Users\Application Data\Microsoft\Crypto\RSA\MachineKeys folder (X: drive where you Windows Server is installed).