Ista 4.39.20 Install !full! May 2026

Helpful guide: Installing ISTA 4.39.20 (BMW/DSS tool)

Copy the provided License.dll or registry .reg file into C:\ISTA\TesterGUI\bin\Release\ (overwrite).
Or run a registry key that points ISTA to a local license server.

"ICOM / ENET" (for ENET cable on F/G-series).
"Ediabas" (if using K+DCAN cable via a K-line interface).

Set Vehicle Data Directory to the SQLiteDBs path.