Why do you buy FTP software by paying much money when windows itself provides it . FTP service can be installed in windows IIS and you can create as many virtual directories as you need. You can also set quota for each users by windos’ default quota management. You dont want to run behind any third party FTP server software. I  am going to demonstrate how to install IIS FTP service on a windows 2003 server with  disk quota for the user.  You can set the disk quota in terms of  Kilobyte (KB) , Megabyte (MB), Gigabyte (GB), Terabyte (TB) and  Exabyte (EB) .  In the following example I am going to create a virtual directory for the user ‘test’ with 1 GB disk quota .

Step1 : Create a user ‘test’ on windows

Step2 :  Install IIS FTP service

Step3 : create a virtual directory under the default FTP and name it as ‘test’ and point to a location , say c:\inetpub\wwwroot\test . Give write permission for the user ‘test ‘

Step4 :  Take Properties of  ‘C’ Drive and go to ‘Quota’ as mentioned in the following figure

Step5 :  Click on ‘Quota Entries’  . Got o ‘Quota menu and click on ‘New Quota Entry’ and  input the Quota limit