magnet:?xt=urn:btih:9799e9cddfbd1102dde08b7d00bfc2c0626dfb41&xt=urn:md5:05d3d3448218acc72bd7a5bbfae9312a&xl=144313325&dn=qt-win-opensource-src-4.5.2.zip&as=https://download.qt.io/archive/qt/4.5/qt-win-opensource-src-4.5.2.zip&tr=http://bt.qt-project.org:6969/announce