PRB: Cannot Add Windows Common Controls or Common Dialog Control to Project (221990)

The information in this article applies to:

Microsoft Visual Basic Learning Edition for Windows 5.0
Microsoft Visual Basic Learning Edition for Windows 6.0
Microsoft Visual Basic Professional Edition for Windows 5.0
Microsoft Visual Basic Professional Edition for Windows 6.0
Microsoft Visual Basic Enterprise Edition for Windows 5.0
Microsoft Visual Basic Enterprise Edition for Windows 6.0

This article was previously published under Q221990

SYMPTOMS

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

Visual Basic 6.0 and Visual Basic 5.0 are both installed on the same system. After uninstalling Visual Basic 6.0, the following error appears when you attempt to add the Windows Common Controls or the Common Dialog control to a Visual Basic 5.0 project:

Error
Could Not Be Loaded

CAUSE

The registry contains a reference to a control version that was removed by uninstalling Visual Basic 6.0.

RESOLUTION

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

Delete the registry key for the problem control from:

HKEY_CLASSES_ROOT\TypeLib

and re-register it. For additional information about deleting and re-registering an ActiveX control, please refer to the following article in the Microsoft Knowledge Base:

217180 HOWTO: Delete and Re-Register TypeLib GUID for ActiveX Control

MORE INFORMATION

The following are the Class ID numbers for the controls known to be affected by this problem:

ActiveX Control	File Name	Class ID
Windows Common Controls	comctl32.ocx	6B7E6392-850A-101B-AFC0-4210102A8DA7
Common Dialog Control	comdlg32.ocx	F9043C88-F6F2-101A-A3C9-08002B2F49FB

When you locate the Class ID folder for these controls in the registry, the folder will contain a version folder. This version folder contains the version entries for these controls.

Installing multiple versions of the same ActiveX control results in multiple entries in the version folder. Deleting the ActiveX folder from the registry and then registering the control will add the correct entries to the registry.

Modification Type:	Major	Last Reviewed:	5/13/2003
Keywords:	kbCmnCtrls kbIDEProject kbprb kbRegistry KB221990