The term RSSI, used in the interface of inssider, is not adequated.
The unit dBm is related to the signal strength, and is generaly negative, ranging from -30 to -100 (in the most cases).
RSSI is an arbritary value, ranging from 0 to 255 (it varies between manufacturers), used by the wireless adapters to determine, for example, when the channel is free or when they have to do the roaming to another AP.
Sometimes, tools converts and shows this RSSI value as percentage, what causes the confusion with the signal strength.
I think it would be better to use the term "Signal" or "Signal Strength", in the next versions, and not RSSI.
That is correct. On Windows XP, the actual RSSI value is reported. However, on Vista platforms, signal strength is reported in the range of 0 - 100, which is then converted to RSSI. The solution is to show the actual signal strength value, and not the RSSI for Vista platforms.