Visual Basic Code of the Week (COTW)
Issue #61
Online Version at (paid subscribers only)
All content and source code is Copyright (c) 1998 by C&D Programming Corp. No part of this issue can be reprinted or distributed in any manner without express written permission of C&D Programming Corp.

*** Special Code of the Week Subcription Offer ***

For a limited time we are offering some special bonuses when you sign up with our lifetime subscription. You will get all of the following:

That's $119 worth of products and services for only $59.95 (over 50% savings!). But hurry, this offer will not last long! To order, jump to and order our lifetime subscription. If you are currently a subscriber and wish to upgrade your subscription, select the Lifetime Upgrade offer for $44.95.

Notes about this ezine

If you are not a paid subscriber, you must have signed up for our free trial at Our ezine is not an unsolicited message (in other words a spam email). Keep in mind that if you signed up for our free trial you can still receive a total of four issues at no cost to you. After you receive the four issues you will be notified about continuing your subscription.

If you do not wish to continue to receive this ezine, please email us at

Requirements for this Issue

The source code in this issue is designed for Visual Basic 5.0 and above. It will work in VB 3 or 4 if you remove the optional parameter.

If you have any questions about this issue, please email us at

In this Issue

The routine included in this issue shows how to search a string backwards.


There is one public function in this module that you can use. ReverseInstr will return the position of the last occurrence of a string in the search string. This is useful for tasks such as pulling off the filename of a full filepath.

Public Function ReverseInstr(sStringToSearch As String, _
                                sStringToFind As String, _
                                Optional Compare As VbCompareMethod = vbBinaryCompare) As Long



Returns the position of the last occurrence of sStringToFind in sStringToSearch.

Sample Usage

    Debug.Print ReverseInstr("this a test string", "s")
    ' Will print 13 in the debug window.  Notice this is the position of the last
    ' occurrence of the s, not the first.

Source Code

To see the source code for this issue you must be a subscriber to Code of the Week. If you are a subscriber the source code is available at the following address:

This document is available on the web

Paid subscribers can view this issue in HTML format. There is no additional source or information in the HTML formatted document. It just looks a little better since we have included some HTML formatting. Just point your browser to link at the top of this document.


That concludes this issue of COTW. We hope you find the source code useful in your development.

The below describes the ways you can supply us some feedback about COTW. We would like to see our members help mold COTW into the best Visual Basic source code resource available. But to do that we need your feedback about what you like and what you do not like about COTW.


If you are interested in advertising in COTW please email us at Our rates are VERY reasonable, actually they are almost FREE. We reach over eight thousand Visual Basic developers each week.

How to tell us what you think

If you have any suggestions for topics you would like to see covered or questions about this issue, please email them to or use online feedback form at

If you have any source code you would like to submit for possible inclusion in COTW, please fill out our online submission form at

Contact Information

C&D Programming Corp.
PO Box 20128
Floral Park, NY 11002-0128
Phone or Fax: (212) 504-7945

Subscription Update

Thank you for trying Code of the Week for Visual Basic.

Your free trial expires after you receive your fourth issue. If you want to continue to receive Code of the Week you can get 52 issues of COTW for only $19.95. This is a full year of Visual Basic source code and information to help with all your development. So don't wait, subscribe now! The quickest way to subscribe is to jump to our online order form at