Download assembly files from GAC in Windows

Hi All,
Recently, I was in a excercise to update all the custom development work to new server. But, as usual, the original files missed from the file system. So i plan to download the dll files from GAC.
usually the GAC files structure is different from the normal file structure. So i have used the below command to download the latest dlls from GAC.
There is a command available in Windows to download the assembly called "subst".
so the command would look like as below. run the command in the command prompt.

subst Z: C:\windows\Assembly

When you go to the my computer you will find a new drive under the regular drives. Just go inside and you can see all the GAC files. The folder GAC_MSIL is what your all files reside in. Copy the
dll's you needed and paste them in some safe location for backup.

To remove the Z drive from machine, then use below command. run the command as mentioned below.
subst Z: /D