Buscando por el google he encontrado esto...
Quim
Where to get the iSeries ADO.NET data provider
The dll is part of iSerices Access for windows which you can download for free (when you select the technology preview). Make sure you check 'Selective Setup' and include the Data and Programmer's toolkit so you get all the data access drivers, help and tools.
1. Download iSeries Access from
http://www-03.ibm.com/systems/i/soft...downloads.html
Select the technology preview version. You'll have do the register rigmarole.
If the link doesn't work, google 'iSeries Access windows' to find the latest location.
Como dice
seyko Giyf