According to your code sample it does: public struct Quaternion { public double X, Y, Z, W; public Quaternion(double w, double x, double y, double z)// This is the set of parameters I wish to call... { W = w; X = x; Y = y; Z = z; } } If that is in a separate DLL, then I'd suggest that you check you are referencing the latest version, and that it compiles without errors. Because your code samples are referring to different struct names: Siren.Program.Quaternion in the error message instead of the code sample YLScsDrawing.Drawing3d.Quaternion Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...

Whoops. My bad. I got this one confused with another thread. A guide to posting questions on CodeProject Click this: Asking questions is a skill. Seriously, do it. Dave Kreskowiak

Ok, removed the ThreadStart(/*stuff*/); //Business... and implemented a lambda... Thread childThreadW = new Thread(unused => cacophony.Beeper((int)nw, Duration, 16383)); and my code builds fine now. Thank you all!

Assuming that your code has no linux OS calls in it and is just generic stuff you just define an interface for it and compile it like Jochen's answer. If you have linux OS calls you will need to build windows replacements or use a framework. In vino veritas

I was making the wrong function call. v_assert(s = MAX_ACL_DEPTH, "MAX_ACL_DEPTH too small"); should have been execute_assert(s = MAX_ACL_DEPTH, "MAX_ACL_DEPTH too small"); Problem fixed. Thanks all.

(Apart from question being unclear) Probability is a "chance", it does not guarantee 100% "successful" answer. So even if you could get an algorithm it won't guarantee to be correct. The accuracy of answer is 100%, only when there is one answer. In two options, there is a probability of 50/50 (50%) and so on. answer := 1/n Where n is the number of answers; options. The example of "coin flip" is a good way to demonstrate this. You flip a coin and your friend selects one. That is the probability. It can be correct or it can be false. The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~