Well if you mean a windows shortcut:

A windows shortcut is stored in a binary file format. If you are experienced
enough you can write some nice code to read it using the whitepaper found
here:

http://www.i2s-lab.com/Papers/The_Windows_Shortcut_File_Format.pdf

Otherwise I would look for a COM lib or DLL that already extracts such info
from a LNK-file. I wouldn't be surprised if there already is something like
that available.