XCLN: IE Mail Button Prompts You to Choose Profile

MAPI client applications call the MAPILogonEx function to log onto a session with the messaging system. It is the client's responsibility to call service providers; MAPILogonEx does not make these calls. All strings passed in and returned to and from MAPI calls are null- terminated and must be specified in the current character set or code page of the calling client or provider's operating system. The lpszProfileName parameter is ignored if there is an existing previous session that called MapiLogonEx with the MAPI_ALLOW_OTHERS flag set and if the flag MAPI_NEW_SESSION is not set. If the lpszProfileName parameter is NULL or points to an empty string, and the flFlags parameter includes the MAPI_LOGON_UI flag, the MAPILogonEx function generates a logon dialog box with an empty field for the profile name.