# Office add-in missing? Re-enable it

When the Content Central buttons vanish from Word, Excel, or Outlook: where Office hides a disabled add-in, the two dialogs that bring 'Content Central Office Integration' back, and the registry value behind a stubborn case.

Product: content-central · Versions: 7.x · Audience: user · Time: 10 minutes · Last verified: 2026-09-05

Canonical: https://help.ademero.com/content-central/integrations/office-add-in-missing-re-enable-it

**At the end of this guide the Content Central buttons are back in your Office application — because you know the two places Office parks a disabled add-in, and the order to check them in.**

The add-in's name, exactly as Office lists it: **Content Central Office Integration**. It runs in Word, Excel, Outlook, PowerPoint, Visio, and Project — and Office itself sometimes switches it off, typically after a crash or a slow startup that Office blamed on whatever add-ins were loading.

## Check the two hiding places, in order

Both live in the same dialog — in the affected application, go to **File** > **Options** > **Add-ins**.

**1. Disabled Items** — where Office puts add-ins it turned off after a problem:

1. At the bottom, set the **Manage:** drop-down to **Disabled Items** and click **Go**.
2. If **Content Central Office Integration** is listed, select it, click **Enable**, close the dialogs, and restart the application.

**2. COM Add-ins** — where an add-in can be present but unticked:

1. Set **Manage:** to **COM Add-ins** and click **Go**.
2. Tick **Content Central Office Integration** and click **OK**. If Office reports it can't load it, note the exact message — that's what support needs.

**What you should see:** after restarting the application, the Content Central controls are back on the ribbon.

> **NOTE:** Each Office application disables add-ins independently — the buttons vanishing from Outlook says nothing about Word. Repeat in whichever applications are affected.

## The stubborn case: the registry value

When re-ticking the add-in doesn't survive a restart, the load setting itself is stuck. The add-in registers per application under (64-bit Office):

```
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\<Application>\Addins\Koi<Application>2010AddIn
```

— for example `...\Office\Word\Addins\KoiWord2010AddIn`, `KoiExcel2010AddIn`, `KoiOutlook2010AddIn`. (Visio's sits under `SOFTWARE\Microsoft\Visio\Addins\`.) The **LoadBehavior** value should be **3** (load at startup); Office writes 2 or 0 there when it gives up on an add-in. Setting it back to 3 — with the application closed, and administrator rights, since these are machine-wide keys — restores loading. This is IT-team territory; users should stop at the dialogs above.

## If it keeps happening — or was never there

- Office re-disabling the add-in after every crash points at the crash, not the add-in setting — capture when it happens and what was open, and bring that to support.
- If the add-in isn't in *either* list, it isn't installed on this machine: [Set up the Office add-in](/content-central/integrations/set-up-the-office-add-in) covers installing the right version (64-bit or 32-bit — matching your **Office**, not your Windows) from your server's Downloads page.

**Success check:** restart the Office application twice. The buttons present both times means the fix stuck; present-then-gone means the registry case above.

## What's next

- [Set up the Office add-in](https://help.ademero.com/content-central/integrations/set-up-the-office-add-in)