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The SAMPR_ALIAS_GENERAL_INFORMATION structure contains alias fields.

 typedef struct _SAMPR_ALIAS_GENERAL_INFORMATION {
   RPC_UNICODE_STRING Name;
   unsigned long MemberCount;
   RPC_UNICODE_STRING AdminComment;
 } SAMPR_ALIAS_GENERAL_INFORMATION,
  *PSAMPR_ALIAS_GENERAL_INFORMATION;

For information on each field, see section 2.2.5.1.