Separating Eudora Program and Data files by John H Meyers, 10 Sep 2010 Here's a simple way to separate Eudora's Program and Data files: Back up everything. Make sure program file "x1lib.dll" is backed up. (This file was in original version 7, but is no longer distributed, so not everyone has this file) Uninstall Eudora -- this removes exactly those files originally installed, leaving "user" files untouched, letting Eudora do all the "figuring out" for you. Copy the Eudora folder that now contains what remains from the previous step to your new "user data" location. Typically, this would be: in WinXP:  C:\Documents and Settings\Dale\Application Data\Qualcomm in Vista & Win7:  C:\Users\Dale\AppData\Roaming\Qualcomm Delete the entire original Eudora folder. Re-install the program files, using original or current installer, and add saved original "x1lib.dll" if you had it. ALTERNATIVE APPROACH: Even if the entire original directory contents are copied to a new data location, before deleting the original directory, the result is normally not bothered by extra "program" files having been copied to a user data area. Whether one leaves extra program files as-is, or removes them either before or after copying the original combined directory, all concern is eliminated about forgetting to move any important user data (including plugins, if any). Here's a list of user data files anyway, should anyone be wanting such a checklist: <http://www.eudora.com/techsupport/kb/1602hq.html> Personally, whenever I pack for traveling, I discover that there's always something I've forgotten, so when it comes to packing up and moving data, I prefer to "copy everything," then (optionally) remove what I don't need. (Eudora_SeparatePrgmDataFiles.htm)