Hey Roland,
You should remove cracked material that is concrete or brick etc. at least 9 inches on both sides from crack line and then fill it properly with new material, proper cement mortar. Similarly the cracks in drive way can also be repaired. The detailed process of repairing cracks is given in the article ‘how to repair cracks’ published on our site.
For more information on ‘Repair of Cracks’ click on the link below:
http://www.gharexpert.com/articles/Cracks-1468/How-To-Repair-Cracks_0.aspx?PL=2&ArticleID=1468&CatID=1371&Count=-1&Tot_Rec=8&Page_Id=1&Estimator=
Thanks