RVal V1.11 Installation and additional Information.	December 2002

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CONTENTS:
	Purpose of the Program.
	New in V1.11.
	New in V1.10.
	Distribution.
	Installation.
	Un-Install.
	Licence.
	Warranty/Disclaimer.
	Known Problems & Limitations.


PURPOSE OF THE PROGRAM:
Resistors are normally supplied in a limited range of values.  These are referred to as the E6, E12, E24, E48, E96 or E192 ranges and have 6, 12, 24, 48, 96 or 192 values per decade respectively.  RVal is a program that helps you select the best pairs of values to produce a given ratio or difference, or to connect in series or parallel to produce an exact value.  It also allows you to find the nearest preferred value to any given value, find the preferred value required in parallel with an existing resistance to produce a desired value or display a list of all the values in one decade of any range.

It is possible to restrict the program to finding the nearest or all within a certain tolerance and the result can be printed, saved or appended to a file or copied onto the clipboard.  Limited on-line help is provided; operation is, I hope, largely intuitive.

The distributed program is fully functional.  Without registration it displays a nag screen when run and will be disabled after 60 days (twice the licenced evaluation period!).  It is possible that you will be able to defeat this time limit, I just hope you will prefer to be honest.


NEW IN V1.11 (Nothing spectactular):
1) E192 range added.
2) Better adherence to system colours.
3) New credit card payment arrangements.
4) 'file_id.diz' removed from the package - assumed obsolete!

NEW IN V1.10:
1) Finding the preferred value required in parallel with an existing resistance to produce a desired value.
2) Support for E48 range now that some suppliers are providing this range.
3) Added the actual Ratio/Difference/Value to the Results display (Why didn't I do that before?).
4) Various minor user interface and printing improvements.
5) Asking for a value of 0 when requesting serial and parallel pairs used to hang the program.
6) Fixed a bug where some applications (e.g. Excel) sometimes failed to get RVal's data from the clipboard correctly.


DISTRIBUTION:
If you wish to pass this program on, please make sure it is complete.  The minimum you should pass on is the following:

	RVal.exe
	ReadMe.txt (this file)
	Order.txt

Other files required to run the program (but which may already be present on the target machine) are:

	VBrun300.dll
	cmdialog.vbx

Alternatively, the preferred way to distribute RVal is by passing on the ZIP file 'rval111.zip'.

UNDER NO CIRCUMSTANCES SHOULD YOU CLAIM A FEE BEYOND ANY EXPENSES YOU HAVE INCURRED (e.g. The cost of a disc, postage, etc.).  I alone can grant a licence to use the program beyond the initial 30 day trial period.


INSTALLATION:
Simply extract all the files from 'rval111.zip' into a directory of your choice.  You will need a copy of VBrun300.dll either in your 'Windows/system' directory or in the RVal program directory.  The former location is better as other Visual Basic V3.0 programs can then share the single copy.  The same applies to cmdialog.vbx, although included in the zip file this can be moved to your 'Windows/system' directory if preferred; just check that you are not replacing a more recent version!


UPDATING:
Like installation this is simply a matter of extracting the files from 'rval111.zip' into the chosen program directory.  I suggest you keep a copy of the previous version, just in case of problems.


UN-INSTALL:
RVal makes no changes to your system files.  To remove RVal all that needs to be done is to delete the program directory and all its contents.  Should you have chosen to keep VBrun300.dll and cmdialog.vbx in your 'Windows/system' directory you may choose to delete these as well, BUT ONLY IF YOU ARE SURE THEY ARE NOT USED BY ANYTHING ELSE.


LICENCE:
RVal is Shareware.  You are granted a licence to use RVal, free of charge, for a 30 day trial period after the first time you run the program.  After that time has elapsed, if you wish to continue using it, you must register your copy with me as described in 'Order.txt'.  Upon registration you will be granted a non-transferable licence to use RVal for an indefinite period.  You may make as many copies of the program as you wish, but you must NOT enter the licence details, provided upon registration, into more copies than you have licences.  Network installations should ensure that the number of simultaneous users does not exceed the licence count.


WARRANTY/DISCLAIMER:
I hearby warrant RVal fit for the purpose described in this file and 'Help/What is RVal?...' and that it will operate in accordance with the instructions given in 'Help/Using RVal...' subject to the known problems and limitations described in this file.

Should any fault be found with RVal, I will undertake to supply updated versions to those reporting the fault only if the cure for the fault lies within my power, e.g. I accept no obligation to cure a fault If the fault is the result of the particular compiler or other development component I have used.

Under all circumstances my liability shall be limited to the refund of the licence fee paid to me.

The writing of this program has been a personal activity and my employer accepts no liability or reward in connection with this program.


KNOWN PROBLEMS & LIMITATIONS:
RVal is a 16bit application written for Windows 3.x and it has been shown to run under Windows 95/98/Me and NT/2000.  However, this leads to some limitations when using RVal with 32 bit versions of Windows and a network:

1) RVal is not 'NDS aware'.  On some networks this can cause the program to be unable to print to a network printer.  If you encounter this problem, try using a captured LPT port instead.

2) RVal only supports short file and directory names of the 8.3 format.

That is all that I have discovered (and been unable to alter) so far.  If any of you discover any other problems or limitations or just have suggestions for improvements please let me know and I will do my best to cure or incorporate them as appropriate.

My e-mail address is: 'bktaylor@iee.org'.

My Web Site: http://homepage.ntlworld.com/taylorfamily1/bkthome.html

My postal address is:
	49 Wigginton Road
	Tamworth
	Staffordshire
	B79 8RL
	England