Delete Particular Rows in Excel

I have found an interesting macro to format excel.  Suppose, I have an excel file just like this:

SL	Roll	Name	GPA	Year
1	33001	Tukhrejul Inam	3.27	2008
2	33002	Ali Hossain	3.87	2007
4	33003	Jahangir Hossain	3.54	2006
5	33004	Moyen Hossain	3.29	2009

I want to delete all rows which contain name like ‘Hossain’. Then I hae to run a macro just like this:
Sub Test()
Dim Rng As Range
Dim x As Long
Set Rng = Range(“C1:C” & Range(“A65536″).End(xlUp).Row)
For x = Rng.Rows.Count To 1 Step -1
If InStr(1, Rng.Cells(x, 1).Value, “Hossain“) = 1 Then
Rng.Cells(x, 1).EntireRow.Delete
End If
Next x
End Sub
Here, C1:C will be column which contains the particular text. =1 means all rows which have the match, will be deleted. If I use ’0′, then all rows which don’t have the match, will be deleted.