Note: On K2000 version 3.2 and newer, KPE is no longer supported.
It is possible to add additional utilities to KPE other than the ones already included such as nslookup. It all start with the latest version of KPE that can be downloaded here.
Once extracted, you can add your favorite utility the i386\system32, which is in the path statement. Once done will need to use the KCDUPLOADER to get your updated version of KPE into the KBOX.
Take a look at the FAQ below for info on using the KCDUPLOADER.