Mavrig is the name of a website, where modules - called rigs - are collected for easy re-use.
On a post from jcw's weblog [L1 ], I found a reference to Mavrig, then I wanted to try it with my PC running XP.
For the record, this is what I did:
1) download the tclkit for WXP from [L2 ], I understand you have to use version 8.5.x
2) download mavrig from [L3 ]