MYOB odbc connection problem

Question

Hi guys, i recently got a prebuild application which uses MYOB odbc connection to myob file. the odbc connection works perfectly in that application

i uses the same odbc connection string in other application but it failed to open in that application. the connection string is perfectly identical but it wont works the new application. Server explorer in the visual studio 2008 connects as well with the same connection string.

is it a trusted application issue? because my new application is not digitally signed at the moment

        OdbcConnection odbc = new OdbcConnection("Driver=MYOAU0901;TYPE=MYOB; UID=Administrator; PWD=; DATABASE=C:\\Premier125\\Clearwtr.MYO; NETWORK_PROTOCOL=NONET; DRIVER_COMPLETION=DRIVER_NOPROMPT;;KEY=****");
        odbc.Open();

the key used in the connection string is also valid for sure

kindly help me i have to deliver a prototype in 2 days

the same connection string is works in one application but not in other application whats the problem?