AD Distinguished Name and special character

I wrote a script to send out password expiration notifcations a while ago, recently I got told that some users didnt' receive their notification.
After looking into it, I realized that the OU structure got changed recently and some OU name contains special characters, in this case if you use GetObject("LDAP://"& DN) to get user Object, DN has to be encoded for special characters.
In my case, a '/' was causing the issue and has to be replaced with '\2F' (hex).