Dynamic SP execution problem from ESQL/C

I have INFORMIX ESQL/C for Windows 5.01.WF1 and INFORMIX ODS 7.10 UC1 under SCO UNIX 3.2. I want dynamically execute stored procedure from Windows-95 client using ESQL/C. I have this code: void main() { $char *q_string = "EXECUTE PROCEDURE test()"; struct sqlda *q_desc; extern long SQLCODE; $DATABASE test_db; $PREPARE q_id FROM :q_string; // SQLCODE = 56 $DESCRIBE q_id INTO q_desc; $DECLARE q_cursor CURSOR FOR q_id; $OPEN q_cursor; $FETCH q_cursor USING descriptor q_desc; $CLOSE q_cursor; } After execution of 'PREPARE' statement the SQLCODE variable sets to 56. Error text is 'Socket is already connected'. Is it a bag? Thanks Sviknoushin Andrew san@inist.ru