@pascal
No, that's not what i meant! OPM states that LazProfiler is installed but it's not installed. See Screenshots of my previous post.
I did understand the issue, I also saw the screenshots. The problem is I cannot reproduce it myself. After 10 package install/uninstall OPM still behaves correctly. Of course that doesn't mean you findings are not real. I will keep trying.
Okay, then i did not understand you
Maybe you can try this:
During developement i created the package under components in the Lazarus directory and installed it manually.
Then, when testeing OPM, i uninstalled through package window and recompiled Lazarus.
After restart OPM still shows "installed". So the first install and uninstall was done manually.
Btw OPM is a verry, very good addon i like it very much!