usbtopc issue

[user1]

I installed the usbtopc cab that included internet sharing... All was fine then several days later it stopped working...no activesync no nothing. I know how to change the rdnis or whatever to serial..to make activesync work. However, i want the usbtopc screen to pop up. Any clues

Thanks in advance

EDIT: where can i get the oem usbtopc

[user1]

sorry, but...
anyone??? Someone please help me from having to do a hard reset...