Finally, I switched to 2017 r 1.1 in order to compile an app which no longer supports Windows XP. When I try to start the app under XP, I get a very strange error message (which I don’t understand…).
Does anybody know whether I can provide a more readable, customized error message?
Build Apps: Win XP is no longer supported.
According to this Page, Xojo 2013 r4.1, is the last Version that supports building compatible Apps for Win XP.
Sascha, I know that XOJO 2017 doesn’t support XP anymore.
That’s exactly the reason why I switched to 2017 r1.1
I want to avoid that my app can be launched under Windows XP.
So far, so good…
My problem is the weird error message that pops up when a user tries to start the app under XP.
I’d prefer an error message that states: “This application cant not be run under Windows XP”…
[quote=337125:@Heinz-Jürgen Groß]Sascha, I know that XOJO 2017 doesn’t support XP anymore.
That’s exactly the reason why I switched to 2017 r1.1
I want to avoid that my app can be launched under Windows XP.
So far, so good…
My problem is the weird error message that pops up when a user tries to start the app under XP.
I’d prefer an error message that states: “This application cant not be run under Windows XP”…[/quote]
The Installer could test if it’s running on a supported OS, f.e. 
So you want the application to run on Windows XP so that it can tell you it does not run on Windows XP?
Hmmm, might be a problem in there somewhere
Installer is a good route to try.
Sascha, your tipp concerning the installer solve my problem - thank you!
I added “MinVersion = 6.1” to the [Setup]-Section of my Inno project -
that avoid installing the app under XP or Vista.
The error message I get when trying to install under XP is much more “readable” now:
Robin,
[quote]So you want the application to run on Windows XP so that it can tell you it does not run on Windows XP?[
Hmmm, might be a problem in there somewhere :)[/quote]
I agree, there is a problem.
I think it’s called “Windows”…
Okay, no Windows-bashing, please… But: things are much easier under OS X.
If I have an app wich will not run under Snow Leopard, it’s icon is shown with a warning signature:
If I try to run this app anyhow, I get an understandable error message.
Another tiny part of OS X’s user friendliness…
[quote]Okay, no Windows-bashing, please… But: things are much easier under OS X.
If I have an app wich will not run under Snow Leopard, it’s icon is shown with a warning signature:[/quote]
Trouble is, while an app for Windows created in 1993 will often still run under Window 10,
apps written for OSX are lucky if they still work after 5 years.
Every new OS version = new ways Apple breaks your app. 
Its almost like they want people to keep upgrading…