The program does not fully save the state? Or launcher changes settings.

For the study, I am trying to make the program Process Monitor portable. (For information, its installation cannot be downloaded from the PA site, there is an error.)
I save the registry settings. My lancher:
[Launch]
ProgramExecutable=ProcessMonitor\Procmon.exe

[Activate]
Registry=true

[RegistryKeys]
ProcessMonitor_portable=HKCU\Software\Sysinternals\Process Monitor

But the program can not start at the maximum size! It remembers the size of the window, but if you expand it, then the next one will be a small standard size. I can not understand why! If I manually import Data\settings\ProcessMonitor_portable.reg into the registry, then the non-portable version starts well! But portable no - with the same settings! What is the matter? Does laucher use some of its own settings?

Setting the window in "MainWindow" in reg. But the program through the launcher can not open the full window at startup.