Unless you can find the registry key it edits, it appears that you can only do this in XP Pro:
What is the alternative to GPEDIT.MSC for Windows XP Home edition? QUESTION POSED ON: 15 FEB 2004
QUESTION ANSWERED BY: Bernie Klinder GPEDIT.MSC (Group Policy Editor) isn't available on XP Home Edition, partly because XP Home cannot join a domain by design. Although the took is designed to be used in an Enterprise environment running Active Directory, all it really does is making registry entries. So, the best alternative is to edit the registry using Regedit. Be aware that editing the registry incorrectly can make your system unbootable or cause other issues, so proceed carefully before diving in!