sp_help and others are missing in newly installed SYBASE ASE on my home XP Professional

exec dbo.sp_help
go
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The responce can be appreciated only by a person with good sence of humor:
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Stored procedure 'sp_help' not found. Specify owner.objectname or use sp_help to check whether the object exists (sp_help may produce lots of output).
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user_name() returns 'dbo', so it looks all right. May i missed some when creating/configuring the server?

Thanks in advance Roman.