The OpenOffice.org Dictionary Installer for Microsoft Windows is no longer being actively maintained.
Recent versions of OpenOffice.org include a built in dictionary installer called DictOOo which has been developed by Laurent Godard and which has many more features, and is more compatible, than the latest version of DictInstall.
To access DictOOo, choose the File menu from within OpenOffice.org, then choose Wizards and click on Install new dictionaries....
Though DictInstall is not currently being developed, previous versions are still available from SourceForge. Note that DictInstall does not work on many systems with recent versions of OpenOffice.org!
Click here if you wish to contact me regarding DictInstall.