@hurkai, in English again:
It depends on the shoes You use. Try using shoes without laces: there are jogging shoes or surf shoes that might do the trick. You can sew or glue the fur to the shoe. But be careful if the material of the shoe has to stretch: then You'll have to sew 'loose', leave some room. If You have to reach laces or a zipper - You can try buttons and a loose flap covering that section of the shoe, the long fur will usually cover them.
If You have used the link I mentioned earlier to build Your hooves or feet - Varric explained how he built them:
http://hawke.livequest.de/hooves1.html
But he mentioned to me that he is looking for a tougher shoe design with thicker soles for the next hooves.