PeterPanettone

Correct. Emba promised several years ago to make the IDE High DPI Aware. Although the tools to make the IDE High DPI Aware are available to everybody.

So what? First reading lesson?

Can't you read? I wrote SCALED!!

200% scaling makes all "normal" non-legacy apps look HORRIBLE! And look how horrible the F6 drop-down search-results list looks when scaling is set to only 150% (!):

After having set the system font size to 200%, the font sizes in the Delphi IDE (except the menu font) still remain microscopically small:

The IDE UI font size can be changed here in the Windows Registry: http://docwiki.embarcadero.com/RADStudio/Rio/en/System_Registry_Keys_for_IDE_Visual_Settings However, the toolbar icons and icon labels (?) and the title bar (text) still remain microscopically small: Even the GetIT fonts are still VERY SMALL compared to the now enlarged IDE Menu font:

Here is another screenshot comparing the IDE's Object Inspector fonts with the "normal" Windows 10 system fonts:

You are a LUCKY MAN!

This is how my Delphi v10.3.3 IDE window normally looks: But MANY TIMES, when I restore the IDE window from MINIMIZED window state (by clicking on the Delphi icon on the Windows Taskbar) there is a substantial vertical GAP between the MainMenu/Toolbar area and the main panels area: I then double-click twice on the IDE window title-bar to restore the usual IDE layout. For testing, I have disabled all my IDE plugins to exclude any possible influence from such a plugin. Has anybody ever experienced this annoying effect?

I have just tested it now on my fresh installed Delphi Ide inside a VM (Windows 10) on my new MacBook Pro. No gap this time, but a waiting time of about 1 second when restoring from minimized state. It seems that migrating to Windows 10 (from Windows 7) healed several things.

460 chars.

I have installed several different things now from GetIt (libraries, components, etc.) without problems and compiled code without problems. So it seems logical that the problem has something to do with the JCL installer.

Meanwhile I tried to uninstall the not installed JCL, and I again got the error message about the not found rtl260.bpl:

You mean, Win7 inside a VM or Win7 as a host for VirtualBox?

That's what I have done. But on the next IDE restart I got this error: Translated to English, this means: System error. Code: 1400. Invalid window handle. BTW, do you also run the IDE in a VM?

Got me a Mac (MacBook Pro 16") with Parallels and installed Windows 10 HOME 64-bit in a Parallels VM. Is Windows 10 Home 64-bit good enough to run Delphi 10.3.3+ without problems or should I upgrade to Windows 10 PRO?

How can they make it so cheap? Do these licenses really work?

TMS Web also seems to be a good choice for building web applications.

Are there any other considerations worth mentioning when deciding which Windows version to use for Delphi?

Does GExperts have Filter Checkboxes for the Compiler Messages log-list? This would allow to TEMPORARILY hide any of the message types [Hints, Warnings, Errors], without having to change the corresponding setting in the Options dialog and then repeat the compilation process: This would particularly useful if there is a long messages list.

Please send me the exact text of the question to Embarcadero to resolve this messages-list problem in a private message, and I will be happy to waste my support ticket.

Who is responsible at Embarcadero for developers' support?

What do you mean by "uneven support efforts"?

According to MARKET RULES, a company should be interested to improve their products to increase its sales. Isn't the US economy based on market rules?

Have you tried to ask Embarcadero? I am sure they are happy to support developers!