From http://www.w3schools.com (Copyright Refsnes Data)

ASP Column Property

The Column property returns the column number of the current character position in an input stream.

Note: This property is 1 after a new line character is written (even before any other character is written).

Syntax

TextStreamObject.Column

Example

<%
dim fs,f,t,x,y
set fs=Server.CreateObject("Scripting.FileSystemObject")
set f=fs.CreateTextFile("c:\test.txt")
f.write("Hello World!")
f.close

set t=fs.OpenTextFile("c:\test.txt",1,false)
do while t.AtEndOfStream<>true
x=t.Read(1)
y=t.Column-1
loop
t.close
Response.Write("The last character in the text file is: " & x)
Response.Write("<br /> at character position: " & y)
%>

Output:

The last character in the text file is: !
at character position: 12

Complete TextStream Object Reference