Thank you very much! We're glad you enjoy it.
NEWT Freeware and Pro versions will only properly scan NT-based (NT4/W2K/XP Pro/W2K3) machines at this time. Win9x, Linux and Macs need software agents installed before they can be scanned. NEWT Pro doesn't provide this yet, but it's on our public list of
planned features.
NEWT Pro does not allow you to create alternate username/passwords at this time. However this is probably one of our most requested features and is currently being developed. This will be most useful in Workgroup configurations.
If machines are part of a domain, we would highly recommend making yourself a domain adminstrator. In a domain setup I don't believe you can enter a username/password to gain access to a remote machine. Even if this were possible, it would take much more time than if you walked over to the domain controller and made yourself part of the Domain Admin group so you can get a good scan.
NEWT Pro is considered to be like any other tool, except that copies can be made of it. If you only use NEWT Pro on up to 200 machines at a time, at each location and you're a contractor, you would only need to buy a 200 machine license, providing license key info is erased and re-entered depending on what location you're in.
Please let us know if you have any other questions.