Hello Curt,
This is quite strange.
If possible, could you please create a sample project that reproduces this and forward me the AIP file? It can be either here or by email at
support at advancedinstaller dot com.
I have tried testing this in a sample project, but unfortunately I wasn't quite able to reproduce this as the prerequisite has installed as expected.

- Screenshot_54.png (6.51 KiB) Viewed 3007 times
Most likely, if you check the Control Panel, the prerequisite will be there for you, too, despite receiving this message.
That message is ours and we throw it in case the prerequisite's condition is not met after the installation.
The prereq condition is evaluated twice:
- before the installation --> here it has to be false, meaning the prereq was not installed --> we install it
- after the installation --> here it has to be true, meaning the prereq was correctly installed
Hope this explanation helps and looking forward to receiving the sample so I can run some additional tests!
Best regards,
Catalin