I was looking for some infos on The Sims with wine and Google showed me your post. A dll is a file that contains shared fonctions and programs (and so games) need some of them. You may have noticed they have long version number. So if a game need an exact version of a dll, it is specified in a manifest. Here, The Sims needs 3 libraries v8.0.50727.762. By googling a bit, I found this (http://www.personal.psu.edu/jah5420/Misc/SolidWorks/eDrawings/Microsoft.VC80.CRT/). Copy them to system32/ should solve your problem.
