SysInternals: How Handle Helped Me Figure Out Outlook Was Up to No Good

NOTE: This post – drafted, composed, written, and published by me – originally appeared on https://blogs.technet.microsoft.com/johnbai and is potentially (c) Microsoft.

So, after a lengthy day of some C# battles, a few Exchange issues, and some ded.pixel blaring through the speakers, I went to clean-up some folders from my desktop. I received the dreaded ‘Folder In Use’ message from Windows:

Alright. That’s odd. All that’s in there is two csv files. Excel isn’t open. So, needless to say, I have no readily apparent signifier as to what’s got this folder on lock-down.

Enter handle. Handle is your friend, in these times of need.

O.k., Outlook. Why do you have a handle on the folder? Took a dump of the process of Outlook, closed it, and the file could then delete.

It’s up to the Outlook EEs to figure out why Outlook kept a handle on that file, now.

O365: Manual Outlook Profile Creation in Wave 15

NOTE: This post – drafted, composed, written, and published by me – originally appeared on https://blogs.technet.microsoft.com/johnbai and is potentially (c) Microsoft.

After the migration to Wave 15, Tenant Admins may find it necessary to create manual Outlook profiles; primarily, for troubleshooting and reproducing issues. It should be important to note that this is not a fully supported scenario but there are some steps available, if manual profile creation is required.

Server: mailbox.outlook.com
User: <User for the Profile>
Logon Network Security: Anonymous Authentication
Proxy Connection URL: outlook.office365.com
Principal Name for Certificates: msstd:outlook.com

Again, this is only for manual profile creation for Tenant Admins, as your CNAME should point to Autodiscover and it should take over the Outlook Profile Creation via Autoconfigure from the User’s ActiveDirectory attributes.