You can Integrate VSS with Eclipse using the following steps
Step 1 : Download VSS plugin from http://sourceforge.net/projects/vssplugin/files/
Step 2 : Unzip and put it inside the eclipse\plugins folder 
Step 3 : Start Eclipse
Step 4 :  Select the project and go to Team >> Share project

 
Step 5 : Give the VSS server credentials .

Username                   : VSS user [...]

What is Ant ?
Ant is an open-source Java-based build tool from the Apache Software Foundation. Ant uses build files, which are simply XML files that tell the Ant program what to do.
Why Ant ?
1)  Simple syntax and easy to learn(If you know XML before).
2) Easy to use.
3)  Cross-platform.
4)   Built-in support for J2EE development, such [...]