Help: I cann't install femlab3 in the win2003?

I can install it in win98, but the instllation in win2003 failed,
It said:


java.lang.StringIndexOutOfBoundsException: String index out of range: -92
at java.lang.String.substring(String.java:1444)
at java.lang.String.substring(String.java:1411)
at ZeroGl0.a(DashoA8113)
at com.zerog.ia.installer.util.magicfolders.JavaHomeMF.a(DashoA8113)
at com.zerog.ia.installer.util.magicfolders.JavaHomeMF.b(DashoA8113)
at com.zerog.ia.installer.util.magicfolders.MagicFolder.initializeAllMagicFolderPaths(DashoA8113)
at com.zerog.ia.installer.Main.c(DashoA8113)
at com.zerog.ia.installer.Main.d(DashoA8113)
at com.zerog.ia.installer.Main.a(DashoA8113)
at com.zerog.ia.installer.Main.main(DashoA8113)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.zerog.lax.LAX.launch(DashoA8113)
at com.zerog.lax.LAX.main(DashoA8113)

in win2003 right click on setup.exe file and choose properties --------------------->compatibility .
in compatibility mode choose run this program .........mode for : win 98

this may solve your problem .