Fix Missing Adobe Add-Ons in Internet Explorer on Windows Server
Question details
Users migrating from Windows Server 2008 R2 to Windows Server 2016 experience missing legacy Adobe PDF add-ons in Internet Explorer, often encountering Access Denied errors when using Acrobat DC.

- Product
- Adobe Acrobat DC
- Device & OS
- Windows Server 2016
- Scenario
- Server OS migration involving legacy web applications that require PDF add-ons to function inside the browser.
- Observed behavior
- Legacy Adobe IE add-ons disappear or fail with an Access Denied error when Acrobat DC is used on the new server.
Ensure you have administrative privileges on the Windows Server and verify that Internet Explorer Enhanced Security Configuration (IE ESC) is temporarily disabled or appropriately configured for testing.
Verify Add-On Compatibility and Installation Source
Ensure you are using the correct installation method for legacy Internet Explorer add-ons, as Adobe Creative Cloud is meant for Adobe product extensions, not browser plug-ins.
Creative Cloud Desktop and Adobe Exchange are designed exclusively for Adobe product extensions. To get Internet Explorer add-ons like Adobe PDF Link Helper and SmartSelect Class, you must install Acrobat DC directly or use the standalone installer with the correct architecture.
Do not use the Adobe Creative Cloud Desktop application to search for or install Internet Explorer add-ons, as they are not hosted there.
Install or repair the standalone Adobe Acrobat DC application directly on the Windows Server using the official vendor-supported installation method.
Open Internet Explorer, click the Tools icon (gear), and select 'Manage add-ons'.
Under 'Toolbars and Extensions', locate the Adobe add-ons and ensure they are enabled. You may need to select 'All add-ons' from the Show dropdown menu to find them.

Review Application Permissions and Architecture
Resolve 'Access Denied' errors by matching the architecture (32-bit vs 64-bit) of Internet Explorer with the installed Adobe Acrobat version and adjusting folder permissions.
Handle PDFs Easily with WPS Office
While troubleshooting legacy Internet Explorer and Adobe Acrobat compatibility on Windows Server, consider using WPS Office for your everyday document and PDF needs. It is lightweight, free, and fully compatible with all major office formats.

Frequently Asked Questions
Can I install Internet Explorer PDF add-ons from Adobe Creative Cloud?
No, the Adobe Creative Cloud Desktop application and Adobe Exchange are intended for extensions and add-ons for Adobe products only, not for legacy Internet Explorer plug-ins.
What Adobe add-ons are typically required for PDF integration in Internet Explorer?
Commonly required add-ons include Adobe SmartSelect Class, Adobe PDF Link Helper, Adobe PDF, and the Adobe PDF Conversion Toolbar Helper.
Why am I getting an 'Access Denied' error for Adobe add-ons after a Windows server migration?
This usually happens due to mismatched permissions, restrictive group policies introduced in Windows Server 2016, or architecture mismatches (32-bit vs 64-bit) between Internet Explorer and Acrobat DC.




