Qualcomm Product Support Tools (QPST) v.2.7.323 is software package used for phones based on Qualcomm chips: UMTS-based phones EF81, SXG75, SFG75, E81 and other (EF82, SL91, etc.). QPST software includes:
QPST Configuration - COM-port selection to work with phone.
EFS Explorer - file manager for phone file system.
Display Capture - screen capture utility for Java-games and video playing.