I don't know French, so I'll be using English.
Beginning with LV 2010 CINs are stated as unsupported and all related tools are removed from LabVIEW installations. But if you strongly need you still may integrate CINs in LV and they will work. All you need is CIN menu palette icon (or VI with CIN on block diagram), CIN toolchain for *.lsb resource translation and adequate C/C++ compiler such as MS Visual Studio.
First and second thing can be obtained from older LV versions or from these boards. Third thing you should install on your own. Some specific adjustments must be made to the compiler to get output *.lsb file, which later should be loaded in Code Interface Node. Please, look at these manuals: 1, 2, 3, 4. Also read carefully Code Interface Reference Manual and Using External Code In LabVIEW tutorials. These have many subjects on DLL/CIN usage and it's well explained. Here's one more document: LabVIEW Advanced Course, which has some additional examples.
Keep in mind, that CINs are platform dependent and need to be recompiled when migrating to another platforms. Also last cintools do not support 64-bit platforms so you cannot create *.lsb file to run it on LabVIEW x64 (but there is one workaround for it though).
