ENVI5.2 It does work
....................\Exelis
....................\......\IDL84
....................\......\.....\bin
....................\......\.....\...\bin.x86
....................\......\.....\...\.......\idl.dll
....................\......\.....\...\bin.x86_64
....................\......\.....\...\..........\idl.dll
....................\......\License
....................\......\.......\envi50_license.lic