Guys.
There is "NO WAY" to join any Domain using any of the HOME usage Windows software. To join domains, you may need - no matter what!!! - any kind of XP Professional, Vista Prof or Ultimate, Windows 7 Professional ou Ultimate. Starters or home edition are useless for that purpose.
HOWEVER (NOTE, HOWEVER ONLY) you may "use and join the usage" of a company network using any kind of Starters or Home Windows. Here is the tricky part: When you were using XP Home, you could just modify one or two registry keys and the XP would operate as Professional, 'cause the kernel of XP home and prof are the same. Be carefull: this registry modification will guide you to use a non-registrered XP Copy, since this is a hack. Note that I´m not showing how to do it.
If you are planning to use either Vista or 7 home/starter, AS LONG as your username and password on the home edition match the domain controller, you will probably don´t face any problem at all.
Lets pick an example: yourdomain\yourusername and yourpassword.
If you use on yourhomexp\yourusername and yourpassword (SAME ONES) the DC will grant you access to the network shares "IF AND IF ONLY" the networkshares have full access to anyone. If the networkshares have AUTHENTICATED USERS access only, it will ask you ONCE and only ONCE for a domain username and password.
Regarding Internet Access, there is no problem at all. Beware that using a GroupPolicy, the SysAdmin may enter some guidance or modifications to your IExplorer to use a specific Proxy. If you know the proxy policies you can enter them manually on your local IExplorer without any policy.
DOMAINS and DOMAINCONTROLLERS are intended to force, diminish and to guide a lot of Group Policies into corporate computers, which may dramatically decrease IT work. Try to immagine a corpnetwork with 500 PCs using NON-PROFESSIONAL Versions of Windows. IT would mandatorily enter 500 PCs to create any policy, while using DC they need only to apply a single GPO and it is done. REMEMBER: GPOs are for IT Administrative purposes, HOWEVER you can force manually any gpo into your computer locally. The issue here is to use GPOs for AdmPurposes for any company with more than 20 PCs to minor the work. Thats all.
Anything else or different than that could be easily done or made using HOMEs or STARTERs editions. The main differences fomr XP Home to XP Prof. are: ability to join domains, loopback features for developers. Any other changes are minor and does not affect most users.
I personally have home a Windows 2008 R2 as personal home server and all workstations are XP Home with some login scripts for netshares and other things. Why? Just because it looks better for my 3 and 7 year old kids to have their Avatars on the login screen instead of login prompt from domain. Also, on a domain there is no way to have multiple users using the same machine. On Home XP or Home Vista or Home 7, you can leave your session running, hit CHANGE USER and other users may use the machine while your login is still active and running in background, thus is not possible on DOMAIN.
Basically is this: PROFESSIONAL is for companies and IT People, while HOME have basicakky same functions without Domain needs.
Hope this help. Please reply case you need some more help.
Luis Closs
IT Administrator.