1. download junctions tools from http://technet.microsoft.com/en-us/sysinternals/bb896768.aspx
2. go to path which you will create linked folder
3. run command like below:
/cygdrive/d/junction/junction.exe assets F:/www/htdocs/sunwebng/assets
/cygdrive/d/junction/junction.exe bower_components F:/www/htdocs/sunwebng/bower_components
4. if you would delete linked folder , run:
/cygdrive/d/junction/junction.exe -d d:/xxx/linked