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SYSTEM REQUIREMENTS The minimum requirements needed to use @Air Version 2.0 include: * Microsoft Windows 3.1x or Windows 95 or Windows NT. * all hardware requirements imposed by your version of Microsoft Windows. Windows loads the @Air add-ins into memory whenever needed. Each add-in occupies roughly 100 K of system memory. This is a modest memory demand relative to most Windows applications and, by itself, should not prompt a need for memory upgrade. CONTENTS OF DISKETTES @Air is distributed on a 1.4 MB 3.5" diskette. The distribution diskette includes the files listed below: * AIRPROPS.DLL Dynamic Link Library (DLL) which contains all the air property calculations for use with 16-bit applications (even when running under a 32-bit operating system). * AIRPRP32.DLL Dynamic Link Library (DLL) which contains all the air property calculations for use with 32-bit systems running 32-bit applications. * XLAIR.XLL Air property add-in for 16-bit versions of Excel for Microsoft Windows. Microsoft Excel users simply load this add-in to use the @Air functions. * XLAIR32.XLL Air property add-in for Excel for 32-bit versions of Microsoft Windows. Microsoft Excel users simply load this add-in to use the @Air functions. * EXAMPLE.XLS a simple example spreadsheet for Excel. It illustrates the use the @Air functions to solve some typical HVAC problems. * AFAIR.ADW Air property add-in for 1-2-3 for Windows Release 4 and 5. It provides @functions which call the functions in the Air Library and perform all necessary type and error checking. * AFAIR.12A Air property add-in for 1-2-3 97 for Windows. It provides @functions which call the functions in the Air Library and perform all necessary type and error checking. * EXAMPLE.WK3 a simple example spreadsheet for 1-2-3 for Windows. It illustrates the use the @Air functions to solve some typical HVAC problems. * AIR.DLL Air property add-in for Quattro Pro for Windows. There is a 16-bit version of AIR.DLL included to support Quattro Pro 5 and 6 and a 32-bit version to support Quattro Pro 7. The setup program will install the proper version. Each add-in provides @functions which call the functions in the Air Library and perform all necessary type and error checking. * EXAMPLE.WB1 a simple example spreadsheet for Quattro Pro for Windows. It illustrates the use the @Air functions to solve some typical HVAC problems. * EXAMPLE.MCD a simple example Mathcad file which illustrates use of all of the air functions. * MCDAIR32.DLL Air property add-in for Mathcad 6.0 Plus. This add-in registers the air functions and provides error checking and unit conversion. * ATAIR.INI Initialization file used by @Air. * VBRUN300.DLL Visual BASIC run time library. Needed to support AIRCALC for users who do not have Visual BASIC 3.0. * AIRCALC.EXE Executable file for interactive air property calculator. * \MSVC Directory which contains all the files needed to interface with AIRPROPS.DLL and AIRPRP32.DLL from within Microsoft compilers such as Visual C/C++. * \BORLAND Directory which contains all the files needed to interface with AIRPROPS from within Borland compilers such as Borland C/C++. REVISION HISTORY This software has undergone several revisions since its initial release. These revisions are described below: 2.0 June 1997 - Combined 16-bit and 32-bit add-ins into one product which runs under Windows 3.1, Windows 95 or Windows NT. - Added support for Lotus 123 97. - Added support for Quattro Pro 7. - Added support for Mathcad 6,0 Plus. - Replaced the 32-bit version of AirCalc with a 16-bit version that works under all versions of Windows. - Renamed 32-bit air property DLL from AIRPRO~1.XLL to AIRPRP32.DLL. 1.1 Feb. 1996 - Introduced 32-bit version for Windows 95 and Windows NT. - Added support for Excel 7.0. - Added a 32-bit version of AirCalc.