A possible improvement on this script would be changing the run handler to use the currently selected files from the Finder, as so:
on run
tell application "Finder" to set sel to selection
open sel
end run
on open the_files
repeat with i from 1 to (count the_files)
try
set posix_path to POSIX path of (item i of the_files as alias)
if posix_path ends with "/" then set posix_path to ¬
text 1 thru -2 of posix_path
try
do shell script "ln -s " & quoted form of posix_path ¬
& " " & quoted form of (posix_path & ".sym")
on error
try
do shell script "ln -s " & quoted form of posix_path ¬
& " " & quoted form of (posix_path & ".sym") with administrator privileges
end try
end try
end try
end repeat
end open
You could also edit [application]/Contents/Info.plist to add
<key>LSUIElement</key>
<true/>
Just before the last </dict>. This would mean the app would run in the background, and wouldn't come to the front when you clicked on it.