Look for qt-win-opensource-4.1.x-mingw.exe for the MinGW-based installer or the source package if using MSVC.

If you are searching for "Qt 4.1" but actually need modern development tools, be aware that there are other "4.1" versions in the Qt ecosystem: Qt Design Studio 4.1 Released

Qt 4.1 was a significant update that refined the revolutionary changes introduced in Qt 4.0. Notable features include:

Introduction of the QtSvg module, allowing applications to display Scalable Vector Graphics.

./configure (add -static if you want a standalone build). Build: make . Install: sudo make install . Modern Alternatives to Note