1. Download the source and load lib\curllib.vcproj in Visual Studio
2. In curllib project properties->Configuration Properties->C/C++->Code Generation->Runtime Library change the value to Multi-Threaded /MT [assuming a release build] so it correctly builds as a static library
3. Then in the project you intend to use libcurl – in the preprocessor section, define CURL_STATICLIB and add the curl include directories
4. In the linker section add curllib.lib, ws2_32.lib, winmm.lib
5. Prosper
For good measure, I’ve uploaded a release build of this lib that you can link to in your project [skip steps 1 and 2]
Read more: ExpandDrive
Read more: libcurl.NET