Err build? Lol
Under your project on the left right click select properties then see thatvone of the option is .dll dynamic link library
make sure character set is multibyte charset
if all goes well press build solution
if success then it will appear in ur Projects Folderrprojectname/Debug
note: if u selected Release build in config manager then it will appear in Release Folder instead
if u have errors then too bad lol