I described the Autoscan functionality in tip 3054.

The default domain types are:

.com                              .org                              .edu
NOTE: IE 6.0 adds .net.

To add additional domain types:

1. Use Regedt32 to navigate to:

        HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Internet Explorer/Main/Url Template

2. Add a string (REG_SZ) value name of n and set the data value to www.%s.<domain type>.

NOTE: IE searches based upon the string value name. The domain type in value name 1 is searched before the domain type in value name 2.

Using the following .reg file, I replaced the existing values and added a .gov:

REGEDIT4                              \[-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\UrlTemplate\]                              \[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\UrlTemplate\]                              "1"="www.%s.com"                              "2"="www.%s.org"                              "3"="www.%s.net"                              "4"="www.%s.edu"                              "5"="www.%s.gov"