Notes on source code for the VNA and signal generator.	01/30/2010

	Host = Windows computer running the application.
	Target = AN8135 processor in the VNA hardware.

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Version 1 of the VNA Host software:
	* Developed on VS2003 tool set.
	* Uses .NET 1.1 run time
	* Uses VC7 libraries.
	* Can target Win 98SE, WinME, Win2000, WinNT, WinXP

Version 2 of the VNA Host software:
	* Developed on VS2005 tool set.
	* Uses .NET 2 run time
	* Uses VC8 libraries.
	* Can target Win 98SE, WinME, Win2000, WinNT, WinXP

Version 3 of the VNA Host software:
	* Developed on VS2008 tool set.
	* Uses .NET 2 run times, may target 3.5 extensions
	* Uses VC9 libraries.
	* Can target WinXP only (OS support prior to XP was
	    removed by Microsoft from VS2008). Might work
            on Vista and Win 7.
	* Location where user application data is stored has been changed
            to try to work under Vista and win 7. I can't test it,
	    so it may or may not work correctly on Vista / Win 7.
            Under WinXP detector.ica is stored in:
	  C:/Documents and Settings/All Users/Application Data/TAPR/VNA,
	    while per-user configuration data is stored in:
          C:/Documents and Settings/{current user}/Application Data/TAPR/VNA.
          These will be different but corresponding locations in Vista and Win7.
        * It has been tested and works OK under non-administrator account in
            WinXp, which MS documents say should work OK on vista/Win 7.

At this point in time, V3 is exactly equivalent to Version 2.1.6,
except for lack of Win98/NT OS support and changes in where user data files
are stored. Any other functional differences are bugs inadvertently introduced
while porting to the new C++/CLI syntax and toolset.

VNAR3_Target_0.9.2 is the software downloaded to the VNA hardware
	* Developed using Keil MicroVision 2 toolset.

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Version 1 of the SGEN Host software:
	* Developed on VS2003 tool set.
	* Uses .NET 1.1 run time
	* Uses VC7 libraries.
	* Can target Win 98SE, WinME, Win2000, WinNT, WinXP

Version 2 of the SGEN Host software:
	* Developed on VS2005 tool set.
	* Uses .NET 2 run time
	* Uses VC8 libraries.
	* Can target Win 98SE, WinME, Win2000, WinNT, WinXP

Version 3 of the SGEN Host software:
	* Developed on VS2008 tool set.
	* Uses .NET 2 run times, may target 3.5 extensions
	* Uses VC9 libraries.
	* Can target WinXP only (OS support prior to XP was
	    removed by Microsoft from VS2008), VNA not verified on
	    Vista or Win7.

Version 3 of SGEN has enhancements beyond version 2, but likely will
not be noticed in general use.
	* Can powerdown the signal generator when the SGEN
	    application terminates
	* Can receive windows internal messages and update frequency
	    and level from those messages (see source for details).

SIGGEN_Target_Source_1.0 is the software downloaded by SGEN R2
to the VNA hardware
	* Developed using Keil MicroVision 2 toolset.

SGEN_Target_Ver_2 is the software downloaded by SGENR3 to the 
VNA hardware.
	* Developed using Keil MicroVision 2 toolset.

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