You should always disable the 8.3 name creation feature when installing WebCenter Content on a Windows platform. The installs will normally work without it disabled, but you will find the weird 8.3 file and directory names in all the config files. Disabling it can also improve performance.

On Windows XP and Windows Server 2003 and above you can do it with this command:

fsutil.exe behavior set disable8dot3 1

To make sure it is disabled you can run this command to check:

fsutil.exe behavior query disable8dot3

If the 8.3 file name creation is disabled you will see the following output from the command:

The registry state of NtfsDisable8dot3NameCreation is 1 (Disable 8dot3 name creation on all volumes).

Here is a Microsoft note on how to do this on Windows 2000 and Windows NT.

How to Disable the 8.3 Name Creation on NTFS Partitions