.IMG file format

[Niaz]

I want to open some map files in .IMG file format using vb. I want to make the maps interactive as on click next detailed map opens. Kindly tell me the way to do this?

[Tower]

I give you only way to realise this.
Transfer .IMG into any format recognized VB.
In event MouseUp this picture box write code for open new map. This event have information about coordinate mouse pointer. Analyse this and open map.