How do you start Lucee-express-6.1 on Windows?

Thanks, Andreas. I hadn’t tried that, but have just done so after reading your post.
No change, alas.

Another test I’ve just done (with lucee-express-6.1.0.243 as it comes out-of-the-box) is to create a new registry key,

“HKLM\SOFTWARE\JavaSoft\Java Runtime Environment”

The key is then populated with the same values as are in the key

“HKLM\SOFTWARE\JavaSoft\JDK”

Still the issue persists.

Please note my 2 earlier remarks:

  1. I had the same issue with Lucee-express-5.4.2.17. That was resolved by editing the file lucee-express-5.4.2.17\startup.bat, replacing

“javaKey=HKLM\SOFTWARE\JavaSoft\Java Runtime Environment”

with

“javaKey=HKLM\SOFTWARE\JavaSoft\JDK”

Double-clicking on startup.bat was enough to get Lucee started. There was no need to do anything about setenv.bat.

  1. Setting the Java environment variable is probably not the issue. To see how I arrive at this conclusion, edit lucee-express-6.1.0.243\startup.bat by adding the lines

echo Java directory found
echo %javaDir%
pause

directly after the line

SET JAVA_HOME=%javaDir%

When you then double-click lucee-express-6.1.0.243\startup.bat, you get a CMD screen saying:

Java directory found
C:\Program Files\Java\jdk-17
Press any key to continue . . .

Press [ENTER] to continue, and Lucee-express-6.1.0.243 fails to start.