Popped in to correct oldmaven. :P C/C++ is a smart compiler.don't need to exlicitly return even if the main has 'int' return type. now let me be more technical to the code. 1) include header is missing and the defintion of KeepWorking UDF is missing as well.....:P 2) TRUE is boolean not 'int' so if you want to EXPLICITLY return, need to write "return 1" LooTe