@eninyo: This patch should solve your problem. A dependency was missing and was added in the patch. If you have this error while building ITK, you can solve it by applying the patch I mention above. If you are having this error while compiling an application that is based on ITK/DCMTK, you might be able to work around this issue by adding the missing dependencies directly in your application. The missing dependencies on Windows are: iphlpapi ws2_32 netapi32 wsock32