osx - Can't get POSIX Path of given application in Applescript -

i've written applescript create list of paths of applications running in dock:

set appsrunning []  tell application "system events"     repeat p in every application process         if background of p false             set appsrunning appsrunning & posix path of (path application p)         end if         end repeat end tell  

but when runs error - "can't make application type constant" , highlights path application p.

i don't understand why happens because when run

set q posix path of (path application "finder") -- or other application   

i no error whatsoever , see "/system/library/coreservices/finder.app/" returned in results field.

how can work?

p.s. purposes essential path - application name won't do. (this because when name of application process, of applications ssbs made using fluid return "fluidapp" name instead of "gmail" or "tumblr" or whatever site i've made application. need distinguish between these , happens when path.)

any appreciated! thanks.

update: used amended version of first suggestion in @vadian's answer solve problem:

set appsrunning {}  tell application "system events"     repeat aprocess in (get application file of every application process background false)         set appsrunning appsrunning & posix path of aprocess     end repeat end tell 

the element application process of system events has property application file, can posix path directly from.

set appsrunning {}  tell application "system events"     repeat aprocess in (get every application process background false)         set end of appsrunning posix path of application file of aprocess     end repeat end tell 

or easier

tell application "system events"     set appsrunning posix path of application file of every application process background false end tell 

additional here solution excludes finder because runs time , path fixed

tell application "system events"     set appsrunning posix path of application file of every application process background false , name not "finder" end tell set end of appsrunning "/system/library/coreservices/finder.app" 

another solution using original approach

set appsrunning {}  tell application "system events"     set applicationnames name of every application process background false end tell repeat aname in applicationnames     set end of appsrunning posix path of (path application aname) end repeat 

and last not least applescriptobjc version (mavericks , higher, in mavericks in script library)

set appsrunning (current application's nsworkspace's sharedworkspace()'s launchedapplications()'s valueforkey:"nsapplicationpath") list 

though method launchedapplications of nsworkspace deprecated, works in yosemite

to use applescriptobjc in script library save code

use framework "foundation"  on launchedapplications()     return (current application's nsworkspace's sharedworkspace()'s launchedapplications()'s valueforkey:"nsapplicationpath") list end launchedapplications 

as script bundle (in mavericks have check "applescript/objective-c library" in side bar of script) in ~/library/script libraries. create folder if doesn't exist.

now can call script library normal script file (the script library named "nsworkspace.scptd")

use script "nsworkspace"  set appsrunning launchedapplications() of script "nsworkspace"