Question: how to add dll path in the visual studio?
Answer: Go to project properties (Alt+F7)
Under Debugging, look to the right.
There's an Environment field.
Add your relative path there (relative to vcproj folder) i.e. ..\some-framework\lib by appending PATH=%PATH%;$(ProjectDir)\some-framework\lib or prepending to the path PATH=C:\some-framework\lib;%PATH%