FIN is basic service SWIFT for message transfer. Over 7 500 financial institutions more than in 200 countries use FIN for the protected exchange of the financial information reliable and economically effective. Realisation of SWIFTNet FIN is an investment into the future which offers the full integrated package of operated transmission media of the formalized messages for the industry of financial services: FIN is basic service SWIFT for message transfer. Over 7 500 financial institutions more than in 200 countries use FIN for the protected exchange of the financial information reliable and economically effective. To large corporations besides traditional advantages of SWIFT (reliability speed safety and financial responsibility) usage of the given service allows to apply a principle of "a unite window at work with several banks. Creation of hardware-software complex of SWIFT in the financial organisation and its direct connection to system SWIFT. Migration from connections to FIN on X.25 to SWIFTNet FIN will allow both to users and most SWIFT to cut the expenses by refusal of use of network X.25 and the out-of-date technologies accompanying the given protocol that already takes place in some countries. Scheme of Shared Connection is developed by SWIFT for connection of affiliated organisations by parent organisation though it can be used by the foreign financial organisations.