The trial licence on this computer has expired error

[aman]

Hi ALl,
I get the above message when I run the excel workbook.

Declare Sub TWAIN_SetApplicationKey Lib "Eztwain4.dll" (ByVal nKey As Long)
' Unlock EZTwain Pro for use with the current application - call this AFTER
' calling RegisterApp or SetAppTitle above:  The nKey value must match
' the application title (product name) passed to one of those functions.
Declare Sub TWAIN_ApplicationLicense Lib "Eztwain4.dll" (ByVal sAppTitle As String, ByVal nAppKey As Long)
' Unlock EZTwain using a Single Application License.
Declare Sub TWAIN_UniversalLicense Lib "Eztwain4.dll" (ByVal sLicensee As String, ByVal nKey As Long)
' Unlock EZTwain using a Universal License.

To sort out this problem, i need to add the below line to the VBA in the excelsheet. But I really don't understand where to add the line.

TWAIN_UniversalLicense("Diligenta Ltd",-260275408)

Can anyone please help me in this?
Thanks