Outlook 2002 hang with error message when closing.

[Eng HK]

My customer is using Windows 98 operating system, with the
Office 2002 (XP) version, and many user encounter error
message during they want to close the outlook, the problem
did not happen when they open it, appreciate somebody can
help/advice on this issue.

Below is the Error report Contents:Exception Information
Code: 0xfff60951 Flags: 0x00000000
Record: 0x00000000c0000005 Address: 0x0000000000000000

System Information
Windows, Minor Version: 10 Build:67766446
CPU Version Code:88A78094 - 30025EC0 -00000001
cpu Version: 00000686 CPU FeatureCode: 0383F9FF
CPU AMD Feature Code: 0119E7E8

Module 1
OUTLPH.DLL
Image Base: 0x35160000 Image Size: 0x0001b000
Checksum: 0x00021d7b Time Stamp: 0x3a8f059b