A: Partially. It will read the tags but may lose some formatting information. For best results, use .L5K export.
IDecoder does not connect directly to the car via an OBD2 cable. Instead, it processes file dumps. Here is the standard workflow: Idecoder 4.3 Download
Before downloading, ensure your system meets the minimum requirements: A: Partially
When reading or flashing an ECU via a vehicle's OBD-II port, hook up a reliable battery stabilizer or charger to prevent sudden voltage drops. Idecoder 4.3 Download