Start the registry editor. This is done by clicking Start then Run. (The Run dialog will appear.) Type regedit and click OK. (The registry editor will open.) Browse to the key: 'HKEY LOCAL MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run' In the right pane, delete the values called 'BookedSpace', 'Bsx3', 'bxsx5' and 'bxxs5', if they exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Classes \ CLSID \ {0019C3E2-DD48-4A6D-AB2D-8D32436313D9}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Classes \ CLSID \ {0019C3E2-DD48-4A6D-ABCD-8D32436323D9}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Classes \ CLSID \ {2B3452C5-1B9A-440F-A203-F6ED0F64C895}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Classes \ CLSID \ {392BE62B-E7DE-430A-8859-0AFE677DE6E1}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Classes \ CLSID \ {A85C4A1B-BD36-44E5-A70F-8EC347D9B24F}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer\Browser Helper Objects \ {0019C3E2-DD48-4A6D-AB2D-8D32436313D9}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer\Browser Helper Objects \ {0019C3E2-DD48-4A6D-ABCD-8D32436323D9}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer\Browser Helper Objects \ {2B3452C5-1B9A-440F-A203-F6ED0F64C895}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer\Browser Helper Objects \ {392BE62B-E7DE-430A-8859-0AFE677DE6E1}', if it exists. Delete 'HKEY LOCAL MACHINE\SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer\Browser Helper Objects \ {A85C4A1B-BD36-44E5-A70F-8EC347D9B24F}', if it exists. Exit the registry editor. Restart your computer. Delete the following files: %WinDir%\bs2.dll %WinDir%\bs3.dll %WinDir%\rem00001.dll %WinDir%\oo4.dll %WinDir%\bsx5.dll %WinDir%\bxxs5.dll Note: %WinDir% is a variable (?). By default, this is C:\Windows (Windows 95/98/Me/XP) or C:\WINNT (Windows NT/2000).