can,t install Usb Ethernet to get serial #

[nick7818]

can't install Siemens Speedstream 1001 USB ethernet Adapter in Windows XP I get a code 43 Message I bought this adapter so i can run this program in my next computer which i plan to get in the near future i plug in the adapter but i don't have a high speed modem to plug it into do i have to buy even more hardware to connect this thing to to get a serial # i don't want to have to repurchace the program when i switch computers i find this whole situation absurd. i do have an old ethernet card installed which does produce a mac id# can i switch this card to another computer and run your program on the new comp., or is only a USB adapter the only one that transfers. Also if i use the old card installed inside the comp. case, and it goes bad or i don't want to waste the slot space, can i transfer that mac id # to a USB type and be able to swicth the serial # to my next computer, or even get another serial # from Mtu't install