You move the mouse pointer over a program file in the Open, Save, or Save As dialog box on a Microsoft Windows XP Service Pack 2 (SP2)-based computer. After you do this, the program abruptly closes.

Note For more information about how to reproduce this problem, see the “More Information” section.

This problem occurs if you use a program that implements the shell column provider feature on your computer. For example, when you install Adobe Reader 7, the shell column provider file (PDFshell.dll) is installed on your computer.

An access violation occurs because Windows tries to reference the pointer of the shell column provider without loading the shell column provider. Therefore, the program closes abruptly.

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit this Microsoft Web site.

[Continue reading Microsoft Knowledge Base article 909486]