'Run-time error- Class not registered' error with Raiser's Edge

Problem

When opening Raiser's Edge, the following error appears:

'Run-time error '-2147221164 (80040154))':
Class not registered

Environment

Windows 10 and 11
Raiser's Edge 7.96.x

Status

As of December 2, 2024, the problem is still appearing on various computers. With one exception, re-moving and re-installing the software using the following information appears to resolve the problem.

Solution 1

NOTE: This work-around is based on the information at https://kb.blackbaud.com/knowledgebase/articles/Article/197066 .

Steps:

Go to the network location of:

\\raiserdb\RE7Deploy\Tools\
Run the 'RERegister.exe' application 'as Administrator'.
Click the 'Start' button to proceed.

This should fix the problem permanently.

However, if the error returns in a week or later, use the Solution 2 below.

Solution 2

Steps:

Go to the network location of:

\\raiserdb\RE7Deploy\Tools\
Run the 'RERegister.exe' application 'as Administrator'.
Click the 'Start' button to proceed.
Complete the steps at https://kb.blackbaud.com/knowledgebase/articles/Article/41655 exactly as published to completely remove The Raiser's Edge, especially the removal of registry entries.
Rebooted the computer.
Re-installed The Raiser's Edge.
Removed/re-installed PaperSave.
Launch Raiser's Edge and install updates as needed.

Raiser's Edge should be fixed now.