HI Sergey,

I try your syntax, but when i pass it to my DLL it gives a error exception code 5 and them 0x80040e14

lOk=.oConnect.ADO_CONECTAR()
lcCommand = [SHAPE {SELECT * FROM "dbo"."Clientes" WHERE C_CODIGO = '] 	+ tcChv + ['}  AS Clientes ]
lcCommand=lcCommand + [  APPEND ({SELECT * FROM "dbo"."CodPostais"}  AS Cod_Postais RELATE 'c_postal' TO 'c_codigo') AS Cod_Postais ]
lOK = .oConnect.ADO_PROCURA_CHV(toRS, lcCommand)

But, if i try

lOk=.oConnect.ADO_CONECTAR()
lcCommand = "select * from Clientes where c_codigo = '" + tcChv + "'"
lOK = .oConnect.ADO_PROCURA_CHV(toRS, lcCommand)

it work's ok.

Thank's for your time

João Batista