Outlook without Outlook Express

by LitePC

If you uninstall Outlook Express and then try to run Outlook you may get the following error message

Cannot start Microsoft Outlook. Outlook requires Microsoft Outlook Express 4.01 or greater. You can install Outlook Express by running IE5Setup.exe from the IE5 folder located on your CD or through the Windows Update website.

Outlook is checking the version number of the installed Outlook Express.

You can trick Outlook into thinking that that you have OE installed by adding the following keys back into the system registry.

HKey_Local_Machine\SOFTWARE\Microsoft\Active Setup\Installed Components\{44BBA840-CC51-11CF-AAFA-00AA00B6015C}

DWORD: "IsInstalled"
VALUE: 1

STRING: "Version"
VALUE: "6,0,2800,1106" (XP SP1)
..or..
VALUE: "6,0,2900,2180" (XP SP2)

Outlook without Outlook Express

See also