Openrowset With Parameter In Exec Statement?

Hi!
Is it possible to call proc with parameter in openrowset?:
declare @str varchar(100);

select @str = 'EXEC SP_HELPTEXT ''createReport''';

select * from

OPENROWSET('SQLNCLI','Server=localhost;Trusted_Connection=yes;', @str)
AS a;

Incorrect syntax near '@str'.

------------------

select * from

OPENROWSET('SQLNCLI','Server=localhost;Trusted_Connection=yes;', 'EXEC
SP_HELPTEXT ''createReport''') AS a;

Msg 7357, Level 16, State 2, Line 1

Cannot process the object "EXEC SP_HELPTEXT 'createReport'". The OLE
DB provider "SQLNCLI" for linked server "(null)" indicates that either
the object has no columns or the current user does not have
permissions on that object.

Best regards
B. D. Jensen