Exchange Online PowerShell Module: Application cannot be started. Contact the application vendor.

Issue

When installing Exchange Online PowerShell Module from the Exchange Online Admin Center (hybrid menu option), I got the following error:

Cannot Start Application

Application cannot be started.  Contact the application vendor.

error

Clicking Details opens a log file, giving you a summary of the error:

ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of C:\Users\SB\Downloads\Microsoft.Online.CSE.PSModule.Client.application resulted in exception. Following failure messages were detected:
+ Deployment and application do not have matching security zones.

Resolution

The Exchange Online PowerShell Module is being installed from an Application Manifest.

Chrome was preventing the .exe file from running, mistaking it as a security risk.  I expect Firefox would do the same.

I switched to Edge to install the application.

Do you want to open Microsoft.Online.CSE.PSModule.Client.application (15.6 KB) from cmdletspswmodule.blob.core.windows.net?  Click Open.

steve2

Do you want to install this application?  Click Install.

steve3

Sorted 🙂

steve4

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s