--- title: "The application has failed to start because its side-by-side configuration is incorrect." slug: "the-application-has-failed-to-start-because-its-side-by-side-configuration-is-incorrect" updated: 2024-03-28T14:32:28Z published: 2024-03-28T14:32:28Z canonical: "kb.pharos.com/the-application-has-failed-to-start-because-its-side-by-side-configuration-is-incorrect" --- > ## Documentation Index > Fetch the complete documentation index at: https://kb.pharos.com/llms.txt > Use this file to discover all available pages before exploring further. # The application has failed to start because its side-by-side configuration is incorrect. When trying to run the LDAPLogin.exe on a 64 bit Windows Server 2008 box and I get this error: The application has failed to start because its side-by-side configuration is incorrect. Please see the application event log or use the command-line sxstrace.exe tool for more detail. --- You need the 2005 version of the VC++ runtime library. Server 2008 R2 comes with the 2008 version installed. Manually install the 2005 version (being sure to run the installer as administrator), and it will work. In the log you will see this error: ERROR: Cannot resolve reference Microsoft.VC80.MFC This is Microsoft's C++ runtime library. You can download it here: [http://www.microsoft.com/downloads/details.aspx?familyid=9b2da534-3e03-4391-8a4d-074b9f2bc1bf&displaylang=en](http://www.microsoft.com/downloads/details.aspx?familyid=9b2da534-3e03-4391-8a4d-074b9f2bc1bf&displaylang=en) This is for Pharos 8.1. ## Related - [PS150 Web Page Error Message: "The connection has timed out"](/ps150-web-page-error-message-the-connection-has-timed-out.md) - [Supported Operating System Languages](/supported-operating-system-languages.md) - [A Device has been added with the name "NULL".](/a-device-has-been-added-with-the-name-null.md) - [Does the psbprint SQL user have to have DBO permissions for all the Blueprint databases?](/does-the-psbprint-sql-user-have-to-have-dbo-permissions-for-all-the-blueprint-databases.md)