I add a custom condition to check if mysql installed,but why it no using

[liwei]

Hi,all. i use advanced installer in a short time ,i wish get help from here.Now,i want to add one custom launch condition to check if mysql installed,i do as follow:
1、 add one "Registry key exists" as pic1.
2、 test value in system which installed mysql as pic2.
3、add custom condition in "launch conditions".
4、 run the program and track running log ,but it show wrong message as pic3.
I make settings as blow ,Could anyone tell me what'st wrong with it?
Great Thanks.

[liwei]

i make one coustom condition as pic4,but fail

[Eusebiu]

Hi and welcome to our forums.

I'm not sure why you encounter this problem. Can you please send us the .AIP (project file) and a verbose log of the installation to support at advancedinstaller dot com, so we can investigate them?

Best regards,
Eusebiu

[liwei]

Thanks,I will sent project file to Email address

[Eusebiu]

Hi,

Thank you for sending me the project file.

Please keep in mind that the way launch conditions work is this:
- if the condition is TRUE the installation will continue
- if the condition is FALSE the installation will be blocked

For example, let's consider that we set this condition: NOT RESULT_PROPERTY
- in case the search does not find any value, the "RESULT_PROPERTY" property will be empty, so the condition will be TRUE and the installation will continue
- in case the search finds any value, the "RESULT_PROPERTY" property will be set, so the above condition will be FALSE and the installation will be blocked

Let me know if you have other questions.

Best regards,
Eusebiu