To download client must be registered. If it is not, you can register by contacting firstname.lastname@example.org.
The TESI download area divides the software into three sections:
Field Software (Qüest, CapiNet, HapiNet CatiNet, CawiNet, MobiNet)
Data Processing Software (Barbwin, DataWin, Visor, DataEntry)
Click the section that you want to visit …