Thank you for answering. But it didnt work. I get: #dmd hello.d -L-lcurl /usr/bin/ld: cannot find -lcurl collect2: ld returned 1 exit status --- errorlevel 1 Curl is installed, as also libcurl3. I forget to mention that i am using "DMD64 D Compiler v2.062". Is std.net.curl working in this Version? Because it also didnt work on my Windows 7 System.