The USER_MODALS_INFO_1001 structure contains mimimum length of passwords in a security database.
typedef struct _USER_MODALS_INFO_1001 { DWORD usrmod1001_min_passwd_len;}USER_MODALS_INFO_1001, *PUSER_MODALS_INFO_1001, *LPUSER_MODALS_INFO_1001;
NetUserModalsSet