Exception:

java.lang.UnsatisfiedLinkError: could not load i4jinst from false, C:\Program Files\MediathekView\i4jinst.dll, C:\Program Files\MediathekView\.install4j\i4jinst.dll
	at com.install4j.runtime.installer.platform.win32.Common.loadNonDebug(Common.java:83)
	at com.install4j.runtime.installer.platform.win32.Common.init(Common.java:57)
	at com.install4j.runtime.installer.platform.win32.Common.init(Common.java:30)
	at com.install4j.runtime.installer.platform.win32.Win32UserInfo.<clinit>(Win32UserInfo.java:56)
	at com.install4j.runtime.installer.platform.UserInfo.isAdminGroup(UserInfo.java:23)
	at com.install4j.api.Util.isAdminGroup(Util.java:544)
	at com.install4j.runtime.installer.InstallerVariables.initAdminRights(InstallerVariables.java:849)
	at com.install4j.runtime.installer.InstallerVariables.initCommandLine(InstallerVariables.java:892)
	at com.install4j.runtime.installer.Installer.getScreenExecutor(Installer.java:109)
	at com.install4j.runtime.installer.Application.runApplication(Application.java:93)
	at com.install4j.runtime.installer.Application.main(Application.java:56)

System properties:

java.specification.version=20
sun.cpu.isalist=amd64
sun.jnu.encoding=Cp1252
java.class.path=C:\Program Files\MediathekView\.install4j\i4jruntime.jar
sun.awt.enableExtraMouseButtons=true
java.vm.vendor=Eclipse Adoptium
sun.arch.data.model=64
user.variant=
java.vendor.url=https://adoptium.net/
user.timezone=Europe/Berlin
install4j.shutdownFile=C:\Users\Joschik\AppData\Local\Temp\i4jshd15108735000067238987.tmp
java.vm.specification.version=20
os.name=Windows 10
sun.java.launcher=SUN_STANDARD
user.country=DE
sun.boot.library.path=c:\program files\mediathekview\jre\bin
sun.java.command=com.install4j.runtime.installer.Application 319 -Dinstall4j.shutdownFile=C:\Users\Joschik\AppData\Local\Temp\i4jshd15108735000067238987.tmp -Dinstall4j.fromService=false -Dinstall4j.fromLauncher=C:\Program Files\MediathekView\MediathekView.exe -Dinstall4j.fromLauncherId=59
jdk.debug=release
sun.cpu.endian=little
user.home=C:\Users\Joschik
user.language=de
jdk.http.auth.tunneling.disabledSchemes=
java.specification.vendor=Oracle Corporation
java.version.date=2023-04-18
java.home=c:\program files\mediathekview\jre
file.separator=\
java.vm.compressedOopsMode=32-bit
line.separator=

java.vm.specification.vendor=Oracle Corporation
java.specification.name=Java Platform API Specification
jdk.lang.Process.allowAmbiguousCommands=false
install4j.fromService=false
user.script=
sun.management.compiler=HotSpot 64-Bit Tiered Compilers
java.runtime.version=20.0.1+9
user.name=Joschik
stdout.encoding=Cp1252
path.separator=;
os.version=10.0
install4j.fromLauncherId=59
java.runtime.name=OpenJDK Runtime Environment
file.encoding=UTF-8
java.vm.name=OpenJDK 64-Bit Server VM
java.vendor.version=Temurin-20.0.1+9
install4j.fromLauncher=C:\Program Files\MediathekView\MediathekView.exe
java.vendor.url.bug=https://github.com/adoptium/adoptium-support/issues
java.io.tmpdir=C:\Users\Joschik\AppData\Local\Temp\
java.version=20.0.1
user.dir=C:\Program Files\MediathekView
os.arch=amd64
java.vm.specification.name=Java Virtual Machine Specification
sun.os.patch.level=
native.encoding=Cp1252
java.library.path=c:\program files\mediathekview\jre\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;c:\program files\mediathekview\jre\bin;C:\Program Files (x86)\Business Objects\Common\3.5\bin\NOTES\;C:\Program Files (x86)\Business Objects\Common\3.5\bin\NOTES\DATA\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\Windows Live\Shared;C:\Users\Joschik\AppData\Local\Microsoft\WindowsApps;;.
java.vm.info=mixed mode
stderr.encoding=Cp1252
java.vendor=Eclipse Adoptium
java.vm.version=20.0.1+9
sun.io.unicode.encoding=UnicodeLittle
java.class.version=64.0