select
	i.name					as PK_name
	,t_obj.name				as Table_name
	,col.name				as Column_name
from
	sysobjects		c_obj 
	inner join sysobjects   t_obj ON  c_obj.parent_obj = t_obj.id	
	inner join syscolumns	col ON t_obj.id	= col.id
	cross join master.dbo.spt_values v 
	inner join sysindexes	i 
              ON t_obj.id = i.id and c_obj.name  = i.name 
                 and col.name = index_col(t_obj.name,i.indid,v.number)
where
	c_obj.xtype	= 'PK'
	and t_obj.xtype  = 'U'
	and v.number 	> 0 
 	and v.type 	= 'P'
	and v.number  <= i.keycnt