Problem Description :
 JNLP RUntime Settings dialog is listing two identical enteries for the installed JRE in case JRE_HOME is specified as short name using dosname utility as described below:
ProgramFiles="`dosname "$ProgramFiles"`"
export ProgramFiles
"$ProgramFiles/Java/jre1.6.0/bin/javacpl.exe"

(See attached JNLP_bug.bmp for more details)

Java Runtime Settings dialog for applets behaves correctly with no duplication of JRE enteries

Steps to reproduce:
1) Install JRE 1.6
2) Create and execute the script as below
ProgramFiles="`dosname "$ProgramFiles"`"
export ProgramFiles
"$ProgramFiles/Java/jre1.6.0/bin/javacpl.exe"
 If you can notice two identical enteries against 1.6 then the bug is reproduced