Here is how to reproduce this bug
I am doing on this H: drive :-

1.check that no JRE1.3.0 is installed in h:\program files though there are several jres in f: and e: drive ( i am giving hypothetical example of my machine setup )
2.Install jaws
3. jaws tries to find jre1.3.0 in program files and then give sysexecv error

If jre1.3.0 is installed in program files directory , installation is successful

I think this is a reproduction of other bugs which has been filed for this from internal as well as external cutomer for the alias javawebstart-feedback@Eng


Configuration:-

jaws101 build 14
OS:- Windows 2000 (Professional )
Intel architecture