---
title: "Error -631 Duplicate Program Extension"
slug: "error-631-duplicate-program-extension"
updated: 2023-11-13T23:28:36Z
published: 2023-11-13T23:28:36Z
canonical: "docs.retrospect.com/error-631-duplicate-program-extension"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.retrospect.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Error -631 Duplicate Program Extension

Resources

Make sure the rdu.rpx file has been saved only to the Retrospect folder under program files and you have not saved a copy to the Retrospect folder under documents and settings/all users/application data.

Last Update: February 13, 2012