permalinks exclusion using .htaccess mod_rewrite

I did a quick search of the forums, but it seems that they’re either saying it’s no problem, or they haven’t been answered. If it’s a problem with my server, please let me know.

I’ve installed wordpress in the main root folder, and then another software as a directory underneath it:

wordpress is at: /public_html , appears as http://www.mydomain.com/
new script is at: /public_html/myscript , appears as http://www.mydomain.com/myscript

However, since I’m using permalinks, WordPress rewrites my urls to the wordpress index.php instead, and does not allow me to access myscript at all. Instead, it gives me a 404 error based on my wordpress template. This is appears to be the work of mod_rewrite and the .htaccess file.

Here is my original .htaccess:

# -FrontPage-

IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

<Limit GET POST>
order deny,allow
deny from all
allow from all
</Limit>
<Limit PUT DELETE>
order deny,allow
deny from all
</Limit>

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

I understand that RewriteCond %{REQUEST_FILENAME} !-f and RewriteCond %{REQUEST_FILENAME} !-d means, “if the file or the directory exists, then do not forward it to index.php (ie. wordpress)”, but if this were true, then i should have no trouble accessing /myscript/ or /myscript/index.php

Here is my attempt to write an exclusion:

RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^ %{REQUEST_FILENAME} [L]

RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{REQUEST_FILENAME}/index.php -f
RewriteRule ^ %{REQUEST_FILENAME}/index.php [L]

I’ve placed this before the #BEGIN WORDPRESS, but to no avail.

Here is my second attempt to write an exclusion:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} !^/myscript/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Also is not working. Is there something I’m missing?

Thank you all for your time and patience.