Audition 1.5 won't start up

Question

I've been using Audition 1.5 for many years, generally to slow down and transcribe music.
It's been reliable and I have had no problems.  I run Windows XP.
Today it won't start up.  The message is get is: "There was an unknown error starting the application".
I look in the event viewer on Windows, but see no error messages.
Drilling down into the program, all the sound files are still there.
Earlier this week, I installed Adobe Photoshop Elements and Premiere Elements.
Would there possibly be a conflict?
Any advice much appreciated.
Thank you.
John

Answer 1

Soundbooth CS5 do not problem about recording when I install it . In Control Panel Window7 , playback tab Speakers is default device and recording tab is stereo mix is default . When I open Soundbooth CS5 , it will detect this configuration automatically . I can record sound on web by press record on soundbooth.
Soundbooth is the best program as same as Audition CS3 . I used the method to setup the same. It do not have problem about recording .
But Audition CS5.5 has problem about recording when I would record with setting up the same . I am very puzzle . I do not understand audition cs5.5 not same Older version . Why ? It is very difficult .
In Audio Hardware , Default Input : Stereo Mix( Realtek High Definition Audio ) Not working
                             Default Output: Speakers ( Realtek High Definition Audio)
                             Master Clock: Out:Speakers( Realtek High Definition Audio)
                             Latency: 200
                             Sample Rate: 44100 HZ
In Control Panel Sound : Sample Rate : 44100HZ 16 bit
The result is
" The selected audio device has no input channels available."
In the present , I can not solve this problem . Please help me too
In the near future  , if i can not solve this problem . I will decide to come back at Soundbooth CS5 . Thank you