Uniscan is a web vulnerability scanner written in perl language,it comes with a variety of scanning techniques.
It is mostly used by black hat means hacker's because its very easy in usage and any can be familiar with it in just a minute it comes built in Backtrack 5 the most linux distro by security pentesters :D

it has many options like,

-h ( for help )
-u ( for confirming a target like -u www.target.com )
-b ( Order uniscan to go background when the scanning will start )
-q ( For Enable Directory Checks )

etc etc.. all options you can see in the picture above :D
now if you want to run it on backtrack just open terminal and type

root@bt:/ cd /pentest/web/uniscan

And hit enter now comes to the main part how to scan a target well its quite simple you have to use just use 1 main option which is -u which defines our target :D and some options according to your need like what you want to be check in the website like this

root@bt:/ ./uniscan.pl -u www.target.com -bqdw  OR
root@bt:/ perl uniscan.pl -u www.target.com -bqdw

Change -bqdw according to your scanning that what you want to be check :D

Well now if you are on windows and don't want to change your os on Linux ( Backtrack ),
Just install perl on your Windows and download the tar.gz file on your computer and run it through perl console its very easy naah :D
                                                         ActivePerl x86 ( for 32 bit )
And
                                                         ActivePerl x64 ( for 64 bit )

Then download the Uniscan 6.2
And enjoy.

hopes you like it don't forget to comment or giving your feedback :D