You can be pretty sure that www.microsoft.com will always be a valid link, but many other web links tend to come and go as their authors move on, get bored, or whatever. If you maintain a web page with lots of external links, it is in your interest to ensure that the links are functioning. If lots of the links on your page are dead, your visitors will not be impressed! Many web page design tools, such as FrontPage, have a "validate links" command but I have found these to be fairly useless. They tell you which links are OK and which are not, but they do not permit you to do anything about the bad links (other than manually removing them from the pages). I needed a better solution for my page.
I keep my links database in an Excel worksheet - one column for URL, one for Title, etc. I have written an Excel Basic macro that reads through the table and writes the HTML code for each of my links pages. I decided to write a Visual Basic program that would:
Use DDE to read a URL from the links worksheet.
Attempt to connect to the URL and note whether the URL is valid or not.
Use DDE to put the label "OK" or "BAD" in the worksheet to indicate whether the URL was good or not.
Continue for all the links in the worksheet.
Then re-write the Excel Basic macro so that a link will be written to the HTML file only if the URL is marked as "OK."
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I haven't used Excel since I was in school (around 9yrs ago), but it's something I've been meaning to get back into (If this comment was disrespectful, please report it.)
he he, I am not sure, LOL (If this comment was disrespectful, please report it.)
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4/20/2003 10:05:14 AM: 
