removing speedmanager/byte client

  usernut 23:26 10 Apr 2010

I am trying to use a new t-mobile usb dongle as I lost my other one.
when I plug it in it tries to run the software but says I have a previous version of a speedmanager/byteclient which I need to remove first. when i tried to remove them it says I dont have permission to remove it?
I am using a laptop with vista.
how can I remove these files?

  Jameslayer 23:14 11 Apr 2010

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