[MSDN Library April 2000] VersionIndependentProgID (52.6785714285714%)

MSDN Library - April 2000 > Platform SDK > Component Services > COM > COM Fundamentals > Guide > Registering COM Applications > COM Registry Keys

[MSDN Library April 2000] VersionIndependentProgID Key (39.6710586408476%)

MSDN Library - April 2000 > Platform SDK > Component Services > COM > COM Fundamentals > Reference > Registry Entries