When I try to open a session with a messagebox , I get the Error message as follows :

Fatal Error :Illegal value for size argument (0) for Sym ' '

Fatal Error : Cannot continue in tcmcs0145m000 in DLL : ottstp_stddll (display.enumerate)[alloc.mem]

Any idea about how to resolve this error.

Thanks Advance.

Manfred

I guess you will display an enum description in your message box. It seems to be an empty string or the value empty in your enum field which you try to display.

Thanks for your help.

How can I change the enum field from ottstp_stddll ?