https://invoiceexpert.uservoice.com/knowledgebase/articles/187502-update-database-version
Click the link to download the VistaDB.4.dll file, and click the "Save" button:

Now click "View Download":

Right click on the VistaDB.4.dll download and click "Open containing folder":

Right click on the VistaDB.4.dll file and click "Copy":

Click on white space on the right hand side of folder name:

Type in:
C:\Program Files\Invoice Expert
Then hit enter:

Right click in between the icons and click Paste:

Select the Copy and Replace option:

Select "Continue":
