How do I override htaccess for specific files?

I have a wordpress site configured in multiuser mode for hosting client sites. One client has a javascript calendar widget that gets imported from The calendar is working fine, but there are two missing graphics. I know the path to the graphics that is being searched, but when I place folders and files on my site that corresponds to the path, I get a 404 error.

I believe the .htaccess file is rewriting the path. I would like to know where I need to place the files, or how I can override .htacess for just the specific files I need.

The javascript widget is looking for files at When I create this on my server, I can see but when I try to load I get a 404 error.

I believe this is the offending line of code in .htaccess. I would like to understand what this line of code is doing, and how I can either bypass it for specific files, or otherwise place local copies of the required .gif files on my server in a path that the javascript can reference. I cannot change the javascript, only the files on my server.

RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

Here is the entire .htaccess file contents

# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule  ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule  ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
# END WordPress
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Steve BinkCommented:
You have two options:

1) Modify the .htaccess file to exempt the specific files from the RewriteRule.  I do not recommend this since it requires manual management of the file list.
2) Examine ms-files.php to find out how it parses the path, then place the files where the script will expect to find them.
Tim-SocialLifeAuthor Commented:
How would I modify the .htaccess file to except the specific files from the RewriteRule? In this case, the files need to be located at

Steve BinkCommented:
To exempt a single file:

RewriteCond %{REQUEST_URI} !/?files/Image/filename.gif$
RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

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To exempt existing files:

RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

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Tim-SocialLifeAuthor Commented:
Thank you, this is exactly what I needed to know.
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