Mail Archiver Web Search error: Could not load file or assembly 'Exclaimer.Capabilities.StoreRules.MailArchiver'

You have received the following error:

Server Error in '/' Application.

Could not load file or assembly 'Exclaimer.Capabilities.StoreRules.MailArchiver, Version=3.360513.0, Culture=neutral, PublicKeyToken=1123eb20e0421193' or one of its dependencies. An attempt was made to load a program with an incorrect format.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.BadImageFormatException: Could not load file or assembly 'Exclaimer.Capabilities.StoreRules.MailArchiver, Version=3.360513.0, Culture=neutral, PublicKeyToken=1123eb20e0421193' or one of its dependencies. An attempt was made to load a program with an incorrect format.

Source Error:

An unhandled exception was generated during the exception of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Try these fixes:

• Change the Mail Archiver App Pool identity to Domain Admin account.
• Make sure “Enable 32-Bit Applications” is set to False.