Currency Exchange and E-Wire Software

Are there any people here that associated with currency exchange businesses. I am particulary interested in knowing more about their accounting software solutions, and e-wire mechanism.

Also, how do most of the transactions are carried out by the people who are involved in sending money back-home on behalf of expatriats. Especially, after the stringent acounting practices mandated by different law enforcement agencies in North America..? What channels have replaced the ‘hundi’ way of doing things, in terms of technology..>

I am not interested in Western Union or commercial bank types of services ? I am particularly interested to know more about the third party applications/services/software being used by the ‘hundi’ and currency exchange businesses in the desi community. Many thanks in advance.