Mapping the N2100 in WinXP SP2 is no problem at all. With the recent firmware(s) even the bug with ACL/DNS is solved.
Using the N2100 in an 100MBit network is not advisible indeed; this is not a problem of the N2100 but of the low performance of the network. Using (small) files on a 100MBit network is no problem, but running programs or doing network intensive tasks is a PITA
The primary use of my Thecus box is the backup. For this, the performance is sufficent. I know about the limits of a 100Mbit network, but changing it, at the moment, is too expensive for me ( switches, cables, computer network interfaces... ) I just wondered about the performance differences when starting an application on a network drive. I should have expected the opposite behaviour ( see my threat "mapping the N2100" ) and I looked for somebody, who did the same experience. The funny thing is, when I do the same procedure with a computer instead of the N2100, there is no performance difference between the first start of the application and the following ( with the N2100 I have a factor of 6 ).