InterBase 15 InstallAnywhere installer crashes on Windows Server 2025

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When trying to install InterBase 15 (or InterBase 2020 Update 7) on Windows Server 2025 you might see the follow crash with this stack trace:

Flexeraaxh$aaa: Windows DLL failed to load

at Flexeraaxh.af(Unknown Source)
at Flexeraaxh.aa(Unknown Source)
at com.zerog.ia.installer.LifeCycleManager.init(Unknown Source)
at com.zerog.ia.installer.LifeCycleManager.executeApplication(Unknown Source)
at com.zerog.ia.installer.Main.main(Unknown Source)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at com.zerog.lax.LAX.launch(Unknown Source)
at com.zerog.lax.LAX.main(Unknown Source)


IB 15 Install crash

To work around the issue, do the following:

1. From an Administrator command prompt set the following environment variable:

set JAVA_TOOL_OPTIONS="-Dos.name=Windows Server 2022"
Important to use the double quotes.
2. Then launch the installer again from this same command prompt and the install should then succeed.

These steps are also documented in the InterBase 15 Readme

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