Wow, thank again on your professional explaination. I'm so shine that although I'm in IT field for years.
Well, I also knew that the 2 SharePort software are different since they are SharePort Network USB Utility and SharePort Utility. But according to many other manufacturers, they will assign a big version number change for the new program with the totally different codes, e.g. CA has renumbered many their products to R10 & R11 from v5, 6, 7, 9 directly.
Anyway, there is a big mistake from D-Link. Why the new SharePort can't support like the older SharePort USB which can support multiple logins? I'm afraid that Vista is going to be more common (althoght WinXP is still the largest market shared) and Windows 7 is coming which both supports multiple login !!! With your explainations, I will write a script to resolve this stupid problem. However, these routers are designed and target for home and SOHO users (who will have more than 1 PC on LAN). How many of them have IT knowledge to handle it? How they will understand why the newer version software (& firmware) can not 100% work like before the upgrade? With the older SharePort USB v1.14, I and my family can print & scan via SharePort when there are other login still exists and from any my 2 PC. As there are so many problems, D-Link should release this newly developed SharePort Utility as BETA and alert us or teach us all the additional configurations other than SharePort Utility.
Also, the newest firmware has bug on SharePort. I'm just rebooted my DGL4500 in 1 hour ago due to I cannot print any again but I'm just turn on my PC (& single login) for printing some documents. Actually, I've rebooted my router every 2~3 days in these 2 weeks due to printing problem.
Cheers/