I have been using IPP 4.1 for some time now and it all works fine. Recently I have tried to create a static lib of my class files which use the IPP. Unfortunately it doesn't work. The code all compiles fine, but then it says "Creating Library..", the CPU jumps to 100% and it stays there for what seems to be eternity. Eventually the computer becomes unusable. I am using Visual Studio .NET, and like I said the same class with the same project properties/settings, works fine. This problem only seems to appears when tryingto make a static library.