Here is my connection string builder code from working project
"Dialect=1;Charset=WIN1251;ServerType=0;Pooling=false;" +
"Server="+parameters.SQLServerName+";" +
"Database="+parameters.SQLServerDatabase+";" +
"User="+parameters.SQLUserName+";" +
"Password="+Encoder.Decrypt(parameters.SQLPassword);if you wish you could refer to FbConnection.ConnectionString Property documentation supplied with FireBird.NET Data provider.

