>>>>

>>>>#DEFINE TaxAmount       _0lO1Ol
>>>>#DEFINE InvoiceSubTotal _0lOlOl
>>>>#DEFINE TaxPercentage   _0lO1O1
>

>.
>.
>.
>>This is exactly my point. Look very closely at my 3 #DEFINEs, they are NOT the same, they're purposely chosen to look alike to a casual read. The whole idea is to obfuscate the code, make it hard to read, and it looks like it has worked perfectly!
>
>Underscore zero one oh one oh one
>
>It must be really good because I dodn't see how they ae different. What is it?

Numeric ones and lower case L's.