GroupWise 6 was working well, until the Windows XP Professional was updated to SP2. After the SP2 update, GroupWise will not start, giving the error message "The application or DLL C:\Windows\system32\mapi32x.dll is not a valid Windows image. Please check this against your installation diskette."
Outlook starts, with the error "Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client."
GroupWise is still working on other PC's at this site, only one PC had WinXP SP2 applied.