Both Windows and Linux are together, click download Zip to right. unzip
just click on stlcoin-0.8.6-win32-setup.exe
If all Qt development libraries already installed same needed for bitcoin just copy and run binaries/stlcoin-qt no need to compile/build
If need to build client on Linux then goto: https://github.com/stlcoin/stl
++++IMPORTANT Install Notes For STLcoin to sync
Select Help -> Debug Window, then click Console Tab.
On command line type " addnode seed1.stlcoin.org add " return then " addnode seed2.stlcoin.org add " return May take few minutes to sync wallet.