WPS COM Add-ins on Windows FAQ

When using COM Add-ins, common questions usually involve missing entries, empty lists, loading failures, and file formats; this FAQ covers 4 frequent questions.

FAQ

What should I do if the COM Add-ins list is empty?

1. Confirm that the required third-party add-in has already been installed in Windows.
2. Check whether the add-in has been properly registered in the system.
3. Reopen the COM Add-ins management dialog and see whether the list refreshes.
4. If the list is still empty, contact the add-in provider to confirm installation and compatibility details.

What should I do if a COM add-in fails to load?

1. Check whether the add-in is compatible with your current Windows environment and WPS version.
2. Close WPS Presentation, reopen it, and test the add-in again from the COM Add-ins dialog.
3. If needed, register the add-in again.
4. If the issue continues, temporarily disable the add-in and contact the provider for further support.

Could lag in WPS Presentation be related to COM add-ins?

1. Open the COM Add-ins management dialog and check whether any third-party add-ins were added recently.
2. Disable uncommon or suspicious add-ins one by one and observe whether performance improves.
3. If a specific add-in updates or reinstalls itself automatically, manage it in the related external software as well.
4. Keep only the add-ins you need to reduce the effect on startup and runtime performance.

What file format is commonly used for COM add-ins?

1. Common COM add-in files are often in .dll or .ocx format.
2. These files usually need to be registered in Windows before the app can recognize and use them.
3. If the file exists but has not been registered, it may not appear or load correctly in the management dialog.

Glossary