VPCart 9.00 is a complete replacement for previous releases of VPCart.
First,
unzip the VPCart
9.00 files using a ZIP utility, such as
WinZip or WinRAR.
Note: We recommend that you make a copy or backup of your existing file and database before completing the upgrade.
To begin your upgrade process,
you need to copy the
VPCart 9.00 files into your existing
VPCart site.
If your old version of VPCart does not have any customizations, you can just overwrite the
previous file versions. If in case your old version of
VPCart contains customization in some VPCart files, you need to manually insert the
customization codes into the VPCart 9.00 files.
To check the
VPCart 9.00 files against your previous
customized VPCart version, you can use a program called
WinMerge available as a free download from: http://winmerge.org/
The VPCart upgrade process does not alter your data in any way. However, it is best to always back up your database before completing any major changes to your site in case something goes wrong and you need to reverse your changes.