[MSDN Library June 1998] /Zp (Struct Member Alignment) (100%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Using Visual C++ > Visual C++ Programmer's Guide > Compiling and Linking > Details > Compiler Reference

[MSDN Library September 1992] /Zp (Pack Structure Members) (32.1211454084786%)

Product Documentation > C/C++ 7.0 > Environment and Tools > PART 3 Compiling and Linking > Chapter 13 CL Command Reference > 13.3 CL Options

[MSDN Library June 1998] /Zp (19.4145758661888%)

MSDN Library Visual Studio 6.0 > Platform SDK > COM and ActiveX Object Services > MIDL > MIDL Command-Line Reference