JSI Tip 3545. I have lost the '.ico' files association in Windows 2000?

Copy the following to an ico.reg file and double-click it:

Windows Registry Editor Version 5.00

\[HKEY_CLASSES_ROOT\.ico\]
@="icofile"
"Content Type"="image/x-icon"

\[HKEY_CLASSES_ROOT\.ico\PersistentHandler\]
@="\{098f2470-bae0-11cd-b579-08002b30bfeb\}"

\[HKEY_CLASSES_ROOT\icofile\]
@="Icon"

\[HKEY_CLASSES_ROOT\icofile\DefaultIcon\]
@="%1"

NOTE: Make sure that the following files have NOT been replaced by 3rd party software:

C:\WINNT\system32\dllcache\query.dll
C:\WINNT\system32\query.dll