Added (27.10.2010, 17:50)
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http://www.longpathtool.com
Do you have error messages?, like :
Cannot delete file: Access is denied
There has been a sharing violation.
The source or destination file may be in use.
The file is in use by another program or user.
Make sure the disk is not full or write-protected and that the file is not currently in use.

If yes, our progam will be helpful for you.

Windows Explorer/FAR would fail to copy/delete/rename any pathname longer than 256 characters. Our program LONG PATH Tool can handle pathnames of any length, up to the internal Windows limit of 32,000 characters.

Fast speed of long path folder/files search.
No special system requirements. LONG PATH Tool works on any Windows version (NT/2000/XP/Vista/Windows 7).
Delete system locked files
Can delete files even from mapped network folders
Can list files and paths which have file path more than 200 characters long.
Close application that uses the file
Unload locking process
Copy and delete files and folders
Delete after reboot
Omits file name you specified is not valid or too long

http://www.longpathtool.com