Subdirectory Exclusion from htaccess problem

Hi,

I’m trying to have a subfolder to put my own php files. (ie: mySubdirectory)

My htaccess looks like this:

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

I read everywhere, and people are saying to simply put
RewriteCond %{REQUEST_URI} !^/(mySubdirectory|mySubdirectory/.*)$
in there but its not working. I tried for 3 hours and im losing it lol

My htaccess now looks like this.
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_URI} !^/(mySubdirectory|mySubdirectory/.*)$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

I also tried putting an htaccess fil in the mySubdirectory folder like this:
<IfModule mod_rewrite.c>
RewriteEngine off
</IfModule>

And that didn’t work either.

Any suggestions?