1. Download the file "NVZ_update_2_0_5.zip" above.
2. Extract the file "NVZ_update_2_0_5.nte" within the "NVZ_update_2_0_5.zip" file to temporary location such as your desktop
3. Start the NVZ calculator software
4. Go to the Help menu and select Update facility
5. Click on "Yes" to proceed
6. Click on the "Get Update File" button
7. Locate the file "NVZ_update_2_0_5.nte" that you saved in point 2 above
8. Click on the file
9. Click on "Open"
10. Click on the "Update Software" button
11. You will be informed when the update has been successful
12. Finally, either click the "Close" button (and restart the software yourself), or click on the "Close & Restart Software" button to return to the software.

When the software restarts you should see "NVZ Calculator (Version 2.0.5.)"   in the title bar of the assessment screen, this will indicate that you have successfully updated to the new version.

1. 7 December 2005 - Minor amendment to fix a bug in the Field Record that would occasionally show a warning that closed periods had not been assessed when there was no need to assess for closed periods (usually when only FYM had been applied to a field) and consequently not showing the crop name or sowing date.
2. 17 November 2005 - Minor amendment to fix a bug that occasionally occurs when the farm profile has been changed - was causing "Run-time error 30009: Invalid Row Value" when entering the Nitrogen requirement for crops.
3. 10 June 2005 - Minor amendment to the report for fertiliser requirements for grassland
4. 13 May 2005 - Updated Version (2.0.2) that now includes recommendations for vegetable crops.
5. 10 March 2005: Fixed bug - if no crop was entered in crop recommendation section and the data saved, when entering the Field Record run-time error 94 sometimes occurs. This has now been fixed.
6. 20 Jan 2005: Fixed bug that occasionally causes run-time error 94, when entering step 1.
7. 20 Sept 2004: Fixed discrepancy in N requirement for Crops when user overrides manure inputs from step3 with direct figures, this was not being shown in the report section (which was still drawing data from step 3).
8. After renaming a field, when trying to edit details for that field in step 4, inorganic N, Run-time error 383 Text property is read only sometimes occurs.
9. When trying to set previous crop in crop fertiliser recommendations or selecting a field in the grass recommendations, the error "Invalid use of Null" arises and software crashes.
10. This may fix Error 3251 that is occurring in some instances when the user tries to set the location in the farm profile.
11. Fixes Run Time Error 94 invalid use of null in step 2 that can occur when no crop has been entered in previous years file
12. Fixes Run Time Error 13 Type mismatch, that can occur when opening the Field Record - when a previous years file has had a field has been entered into step 4 (Inorganic N) but not date of application has been set.

1. Download the zip file, "NVZ Installer Patch.zip", above
2. Extract the file it contains "NVZ Installer Patch.msi" to somewhere temporary, e.g. your desktop.
3. Double click on the file to start the installation
4. Follow the on screen instructions
5. You will be informed when the installation is complete
6. Restart your computer

Note 1: You must have installed the NVZ software first before you can use this update.
Note 2: You can delete the file "NVZ Installer Patch.msi" when you have completed the update.

"Run time error 429 Active X can't create object"

1. Download the file calendar_control.zip above
2. Extract the file "mscal.ocx" from the file above (calendar_control.zip) to the following folder:
   C:\WINDOWS\SYSTEM32
   (you may be prompted to overwrite the file, if so select Yes to overwrite
   it)
3. Click on the Windows Start button and select "Run..."
4. In the Run window type in the following text and then click on OK:
   REGSVR32 /U MSCAL.OCX
   (don't worry if the file fails to unregister)
5. Click on the Windows Start button and select "Run..."
6. In the Run window type in the following text and then click on OK:
   REGSVR32 C:\WINDOWS\SYSTEM32\MSCAL.OCX
   (you should get a message box saying the file has registered OK)
7. Restart the computer
8. Once the computer has restarted, try running the NVZ software again to see if the calendar control is now available in steps 3 or 4.

1. Download the zip file, "mshflxgd.zip", above
2. Extract the file it contains "mshflxgd.ocx" to the following folder

"C:\windows\system"
(note: on Window NT/2000, this folder might be "C:\winnt\system")

"Component mshflxgd.ocx or one of it's dependencies not correctly registered"