All, I can use wstring related function in 8.0 without any problem. But If I move the code to AS2.1 and compile, The compiler throws the 'swprintf() undeclared function' error. How to resolve this? I am using the -wchar-stdc++ compiler option to include wstring in AS2.1 (Bug fixed compiler) Thanks. T. Muthu Mohan -- Psyche-list mailing list Psyche-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/psyche-list