Q Light Controller+

I know how old Windows XP is, but I have a backup laptop that can't go past XP. I'm running 3 different shows right now, and one of my Windows 10 laptops developed a problem, and I'm using my Windows XP laptop for one of the shows, but some of the functions in 4.11.1 cause QLC+ to crash.

I'm wondering if anyone knows the last release that had full support for XP?

I'm not asking for 4.11.1 to be "fixed" to support XP. That wouldn't be practical.

some of the functions in 4.11.1 cause QLC+ to crash.

Please specify which ones and how to reproduce

QLC+ 4.11.1 does support Windows XP

The first problem I found was with a slider set to an input universe to control a fade out of a sound cue.

In Input Output Manager:
create a Loopback Input and output in U4

In fixture Manager:
create a Dimmer in U4

In Function Manager:
create 2 scenes, Dimmer-On with the Dimmer at 255 and Dimmer-Off with the Dimmer at 0
create a Chase with the 2 scenes in it, top Dimmer-On, second Dimmer-Off
set Dimmer-Off fade in time to 15 seconds
import a sound cue

In Virtual Console:
create a button connected to the sound cue
create a button which points to the chase
create a Slider
in Playback select the Chase
on the General Screen and click Choose
expand the Loopback 4 Universe
enter the channel number of the dimmer
click OK to return to Virtual Console
switch to Operate Mode
the program crashes

I will not have access to that laptop for a couple of days. As soon as I can, I will provide the error from the Application Event Log

I discovered the problem I was having was caused by a corrupt workspace. When I created a new workspace from scratch, I was able to create a working fader.

I'm sorry for the misreport.