Yes, you can do this. Here is a code sample from the documentation:
Public Class Test
Public Shared Sub Main()
Try
Dim path As String = "c:\Temp\MyTest.txt"
If File.Exists(path) = False Then
File.Create(path)
Else
' Take an action that will affect the write time.
File.SetLastWriteTime(path, New DateTime(1985, 4, 3))
End If
' Get the creation time of a well-known directory.
Dim dt As DateTime = File.GetLastWriteTime(path)
Console.WriteLine("The last write time for this file was {0}.",
dt)
' Update the last write time.
File.SetLastWriteTime(path, DateTime.Now)
dt = File.GetLastWriteTime(path)
Console.WriteLine("The last write time for this file was {0}.",
dt)
Catch e As Exception
Console.WriteLine("The process failed: {0}", e.ToString())
End Try
End Sub
End Class
Hope that helps,