NYCtek

If you are in the habit of downloading WordPress themes from the Internet instead of crafting them by hand, know that many WordPress theme sites (not to mention malicious crackers) encrypt their code so novice users can not read or edit them. These encrypted files could be harmless, or might contain code that will destroy [...]

Save yourself alot of grief. Trust me.
note: You need to have a Windows CD handy for this operation. If you do not have it then you can download the Recovery Console iso image file which consist only those files required to use theRecovery Console. Download the image file from here. (7MB)

The Windows XP Recovery [...]