December 14th, 2011· Added units change to allow CO2 to be displayed in pounds as well as Kilograms
· Also includes various minor formatting improvements
October 28th, 2011· Can now compare items with different operating hours and handle continuous and variable standby power. Electricity costs now 6 decimal places. Default electricity data updated. Check for updates option added. Default electricity costs updated. Also includes a number of minor interface improvements and error handling improvements.
March 23rd, 2011· Now allows zero power for item 2 (for comparing with solar powered devices). Option to run program from installer added.
· Electricity costs now work to 5 decimal places.
· Fixed a bug where item power missing decimal place in log.
· Updated default electricity costs.
· Removed life and cost figures from log if 0.
· Reset Data now disables Save if enabled.
· Log format tidied up.
November 3rd, 2010· Item wattage can now include 1 decimal place.
· Item life limit increased to 50,000 hours. Results log no longer shows inflation if 0.
· A missing results log no longer terminates program.
· Funmction keys added.
· Archive status message corrected.
· Minor format changes.
April 15th, 2010· Added option to clear log file and not archive it.
· Removed item costs from log if not used.
· Clear now resets currency symbol correctly.
· Corrected results log, inflation and autosave checkbox tool tips.
October 7th, 2009· Installer and executable now digitally signed. Help updated.
July 30th, 2009· Option to archive results log file added. Bug where currency symbols didn't update properly if changed while program running fixed. Minor layout improvements
May 14th, 2009· Inflation calculation corrected - inflation was incorrectly added to the item cost, inflation range modified to allow deflation. Added error checking for incomplete life and cost data. VAT/Tax and Clear button Tool Tips corrected. Various minor format changes and bug fixes.
May 7th, 2008· Product name and version added to installer on Vista. Product name and date/time reversed in log file start up message.
· Help updated.
· Fixed a bug where changing the currency settings between clicking calculate and save cause a value error message.
· Minor formatting changes.
December 27th, 2007· Help updated to fix a corrupted page. Minor change to error handling.
· Fixed a bug where the configuration file is not backed up on upgrade
April 16th, 2007· Added file created date to log file.
· Fixed bug where a corrupted log file causes a run time error, log file now uses short date format, minor formatting improvements to log file.
· Improvements made to error handling and reporting.
· If currency not equal to £ or € program displays Tax instead of VAT.
· Fixed bug where changing currency setting while program is running may cause errors.
· Fixed bug where pressing Reset Defaults twice cleared Item 1 & 2 Cost.
· If no data to calculate error message now says no data to calculate.
· Now recalculates if currency symbol only is changed.
· Various minor updates and improvements to help