I'm attempting to rebuild a legacy application environment. The specs are
- Windows Server 2003 SP2
 - Java SDK 1.3.1_15
 - Macromedia JRun4
 
I've installed the Java SDK however whilst attempting to install JRun4, I receive this message during the "JVM Selection" stage

I figured there was something weird with the reported version and when running c:\jdk1.3.1_15\jre\bin\java.exe -version, I receive absolutely nothing.
The only way I've been able to get a version displayed is by running c:\jdk1.3.1_15\jre\bin\java.exe -classic -version
C:\>jdk1.3.1_15\jre\bin\java -version C:\>jdk1.3.1_15\jre\bin\java -classic -version java version "1.3.1_15" Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_15-b01) Classic VM (build 1.3.1_15-b01, native threads, nojit)  I have this exact JDK installed on another machine and the version information displays correctly.
Has anybody seen this before and knows something I'm obviously missing?