Legacy Update: Get back online, activate, and install updates on your legacy Windows PC

The Microsoft Customer On Demand Diagnostics tool tests connectivity with Domain Name Server (DNS) , ability to access the Internet, and ability of client to communicate with Exchange Online Dedicated client access servers. By downloading Customer On Demand Diagnostics you are hereby consenting to the installation of this program to analyze Microsoft Exchange Service programs on your computer.

• The CODD tool is used to address access issues that members of your organization are experiencing whenattempting to use Office 365 Dedicated services. The following, for example, represent possible issues thatcan occur when attempting to access Exchange Online Dedicated:
  Outlook Web App (OWA) main page failing to load or unable to interact with the Client Access server that provides OWA access
  Mail transport (SMTP related) issues
  Outlook client connectivity failures
  In addition to interaction with your servers and network equipment, the tests performed by the tool involve interaction with Exchange Online Dedicated. Even though the tests involve the Exchange service, results of several of the tests can be useful for troubleshooting issues involving other Office 365Dedicated services.
  By downloading Customer On Demand Diagnostics you are hereby consenting to the installation of this program to analyze Microsoft Exchange Service programs on your computer, review our Privacy Statement
  

Files

Status: Live This download is still available on microsoft.com. The downloads below will come directly from the Microsoft Download Center.

File	Size
CustomerOnDemandDiagnostics.zip SHA1: 7caddc7361e734d46c14982d5a168e6074b7db23	672 KB

File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.

• The following minimum version of the Microsoft .NET Framework is required:
  
  • Microsoft .NET Framework Version 4.5
   

• To download and execute this program, follow these steps:  
  1. Click the Download button on this page, and then save CustomerOnDemand.zip to your hard disk.
  2. Extract the CustomerOnDemand.zip on your hard disk.
  3. Double-click the customerondemand.exe file on your hard disk to start the application