Uninstaller courrupt launcher file if launcher is opened while uninstallation

[Akamig]

Issue

Basically, uninstaller is not properly uninstalling launcher when launcher is opened while removal.

Problem

Not only NSIS script of uninstaller does not handling process state at all, it doesn't checking the integrity of the removal result, making leftover files which disrupts reinstall.

Risk

We need to adopt custom written NSIS script in order to resolve this issue, but it seems NSIS itself have numerous problems with handling running process tree, which possibly resulting

• Not removing files at all
• Not closing running process (launcher in this case)
• Removing wrong file
• Break BOTH uninstaller / installer totally.

So there's very, very high risk underlying on this issue. need to tread very carefully.