mycrypt on local doesn't decode but does on web server?

Hello, I am hoping that some body might be able to point out what is going wrong. Basically I am running apache2 etc (sokkit) on a local MS XP machine. I downloaded libmcrypt.dll from http://ftp.emini.dk/pub/php/win32/mcrypt/ as specified on php.net under 'Mcrypt Encryption Functions' and configured with no probs. Viewing my local phpinfo() mcrypt: is showing up however with less supported ciphers than on the web server I use, but that's not a problem. So I run the script on localhost. It encodes but won't decode. I run the same script on the web server and all works? What am I missing none of the functions are returning any error #s / Falses etc. Code is attached. Thanks for any help or advice Will _____ I've stopped 46,300 spam messages. You can too! One month FREE spam protection at www.cloudmark.com <http://www.cloudmark.com/spamnet?v1> <http://www.cloudmark.com/spamnet?v1> Cloudmark SpamNet - Join the fight against spam!