[MSDN Library June 1998] FMExtensionProc (31.031746031746%)

MSDN Library Visual Studio 6.0 > Platform SDK > User Interface Services > Shell and Common Controls > Windows Shell API > Shell Reference > Callback Functions

[MSDN Library April 2000] FMExtensionProc (30.0892857142857%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows Shell > Shell Reference > Shell Callback Functions