%CD% where you want your path should work, as in:

cd Programs\jedit
java -jar ./jedit.jar -settings=%CD%\settings

Where the %CD% explodes to be Q:\Programs\jedit on some systems & F:\Programs\jedit on others etc...

Hello Gabe,

If:
1.) suitable Java version is installed on the target system, and
2.) javaw.exe is in the search path of this system

probably the following will work for you:

- Create a bat-file in your jEdit-directory on your flash drive, for example runj.bat

- Write into runj.bat:

@echo off
cd
echo.Starting jEdit...
cd %0\..

if "%OS%"=="Windows_NT" ((cd /d %~dp0)&(goto next))
echo %0 | find.exe ":" >nul
if not errorlevel 1 %0\
cd %0\..
:next
echo I'm in directory:
cd

javaw.exe -jar jedit.jar -reuseview -settings=%0\..\settings

- This assumes, that your settings directory is in your jedit directory

- To start your jEdit with the settings on the flash drive, run runj.bat

It might be better to replace:
javaw.exe -jar jedit.jar -reuseview -settings=%0\..\settings
by:
javaw.exe -Xms64M -Xmx192M -jar jedit.jar -reuseview -settings=%0\..\settings

- Axel