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Opening a document results in RequisitePro error: Library not registered

Technote (troubleshooting)


Attempts to open a document using IBM Rational RequisitePro results in the error "Library not registered. (RqWordServices.WordWrapper, 421, -2147319779)".


The full error message is:

Runtime Error: Automation error

Library not registered. (RqWordServices.WordWrapper, 421, -2147319779)

This unexpected event was recorded in the log file:

C:\Program Files\Rational\RequisitePro\Bin\Error.log


This error is caused by a Microsoft related problem with the Office 2007 Primary Interop Assemblies.
The problem may also be caused by having Microsoft Project 2010 installed with Word 2007.

Resolving the problem

In order to resolve this communication issue, it is necessary to uninstall this package through Add/Remove Programs in the Microsoft Windows Control Panel.

Note: If the Microsoft Office 2007 Primary Interop Assemblies is not installed, it might be necessary to install or re-install the Windows Script 5.6.

In the case Microsoft Project 2010 is installed with Word 2007, the following registry key can be removed to correct the problem:


In the case Microsoft Lync is installed, the following registry key can be removed to correct the problem:



This solution contains information about modifying the system registry. Before making any modifications to the Microsoft Registry Editor, it is strongly recommended that you make a backup of the existing registry. For more information describing how to back up the registry, refer to Microsoft Knowledge Base article 256986

Document information

More support for: Rational RequisitePro
Word Integration

Software version: 7.0,,,,,,,,, 7.0.1,,,,,,,, 7.1,,, 7.1.1

Operating system(s): Windows

Reference #: 1298193

Modified date: 23 May 2016

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