Redirect links that have capital letters

[BigFan11]

I am trying to 301 direct any links that have capital letters. I am using Helicon ISAPI_Rewrite3. I've searched about the topic and ended up having these three lines in my .htaccess file:
RewriteMap lc int:tolower
RewriteCond %{REQUEST_URI} [A-Z]
RewriteRule ^/(.*)$ /${lc:$1} [R=301,L]

One link said that the first line shouldn't be on the .htaccess. I've tried moving it to the httpd.conf file, but no change.

I still can't get it to redirect to the link with the lowercase. I want this link: [mysite...] to be directed to [mysite...]

Not only that. I want to make sure that it indeed directed. I used this link to verify the status of a link: [seoconsultants.com...]

I am following the steps that the comment #15 mentioned in this link:
[chrisabernethy.com...]

What did I miss?

Please help,

thank you!

[g1smd]

I usually install a hook inside .htaccess that detects upper case requests which are then rewritten to a special PHP script. The PHP script then fixes the URL format and sends the redirect response.

The code was posted in full in this forum only a week or so ago in [webmasterworld.com...]

[BigFan11]

Is there any .aspnet solution? (I am using IIS 6.0)

[BigFan11]

I have figured it out!
The solution was working for me the whole time.

all I had to do was clearing the cache on my machine to make the pages load fine. Get this, I was not able to even call pages that I have not before.
I was going nut. Luckily, after I figured it out, I had to do it for other sites, so I did a screen recording of the behavior and the fix (the clearing of all files/cache and cookies). i was able to replicate the issue, the fix over and over again!

[BigFan11]

After figuring it out, i am still a bit unclear about what the real cause of the issue was. Maybe someone here can help me understand this.
I will mention the symptom and the sure fix that did it everytime in chronological order:
1. I request couple of pages of a site. The pages load normally.
2. Add .htaccess that has a single rule to redirect uppercase url to lower ones.
3. request the same pages from #1. All three break. The css is not in place.
4. Restart the IIS server (in my previous update, I had an alternate solution where I would fix it by clearing all my cookies, cache files and history on my browser, but restarting the IIS is easier).
5. Reload the pages... load fine!

I did this on at least 7 sites. The same exact behavior kept happening... every single time! I am so sure of this sequence.

Here is the single rule that I had in my .htaccess:
*******************************
RewriteEngine on
RewriteBase /
RewriteCond %{HTTP_HOST} (.*)
RewriteRule ^(.*[A-Z].*)$ $1 [R=301,CL,L]
*******************************

how did the .htaccess affect the css and how did it get fixed because of the restart of the IIS?

Any ideas of what was happening? Guesses are welcome too.

[g1smd]

I assume the CL flag converts everything to lower case?

[BigFan11]

yes, the CL converts everything to lower case. Do you know what was happening with the css?