compilation experience

[Dediggefedde]

I had some difficulties compiling this in windows, so I wanted to write a little history...

I'm using Windows10 (doubt it would be much different in WinXP)

First I went to QT, downloaded QT5, installed it, went to CMake, Downloaded it, installed it, registered the binary paths of QT and Cmake in the Windows PATH variable, downloaded visual studio express, installed that, downloaded this source code, went to the /npiet/ folder in command prompt and called "cmake ../"
Then I got an error: QT5 is wrong, please use some QT4.x. (first impression was, that it would be downward compatible, but apparently it's not). So I went to the QT Archive, downloaded QT4.8.6, installed that, added binary path to PATH, closed command prompt and reopen it to call again "cmake ../" . There it told me QT5 is prefered over QT4 when both are installed. Then I uninstalled QT5 and called cmake again, which finally got me the visual studio .sln project files. These I could actually compile without a problem into a executable, which I couldn't run. That was because I missed the visual studio c++ redistributional thingy, which was a wrong diagnose as I simply didn't use the Release-Channel in Visual studio. Building it in Release mode was finally successful. and I could run the application.