I downloaded the VLFeat lib from its git repository! I followed the instruction in the installation page. But when I ran the vl_setup command I got this warning:
Warning: Name is nonexistent or not a directory: ..\Adv. 3D
Computer Vision\vlfeat\toolbox\mex\mexw32
So follow some steps mentioned in MathWorks website, like 1,2,3 but the problem didn't solve. I trace the vl_setup.m file and according to the error statement it can not find the mexw32 folder. but there wasn't any folder like that when I downloaded that lib.
I'm using Windows 7, Matlab 2013a
Did you compile the mex files first through vl_compile.m? Once you compile the code, the mex directory should appear with the MEX files associated with your OS. Those setup instructions assume you have the binary distribution but you downloaded the source from github.
Consult VLFeat's compilation instructions for Windows here: http://www.vlfeat.org/compiling-windows.html