Media encoder version 4.20.006 does not open

Question

I finished editing a program on Premier pro CS4 version 4.21 with a resolution of 1920 X 1080 60i . The images are from a Sony EX1 camera. I needed to export this edit to a 4:3 Avid edting suite and so I chiose first in Quick Time. When I finished I chose .avi with a crop 4:3 720 X 480 .
When I used Fie/ Export /media a media settings display appeared. When I checked the setting I pushed th OK button and the the media encoder started to open, the display did not show completely and a Microsofy error display came out. I agreed to send the information about the problem and the media encoder started to open again and the same problem.
I close Premiere and tried to start media encoder by itlsef... the same happend.
I went to the event wiewer of my XP SP3  machine and got the following warnings:
Event Type: Error
Event Source: Application Error
Event Category: None
Event ID: 1000
Date:  9/14/2010
Time:  12:13:39 PM
User:  N/A
Computer: ENTERPRI-0812A5
Description:
Faulting application adobe media encoder.exe, version 4.2.0.0, faulting module watchfolder.dll, version 0.0.0.0, fault address 0x00011f03.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 41 70 70 6c 69 63 61 74   Applicat
0008: 69 6f 6e 20 46 61 69 6c   ion Fail
0010: 75 72 65 20 20 61 64 6f   ure  ado
0018: 62 65 20 6d 65 64 69 61   be media
0020: 20 65 6e 63 6f 64 65 72    encoder
0028: 2e 65 78 65 20 34 2e 32   .exe 4.2
0030: 2e 30 2e 30 20 69 6e 20   .0.0 in
0038: 77 61 74 63 68 66 6f 6c   watchfol
0040: 64 65 72 2e 64 6c 6c 20   der.dll
0048: 30 2e 30 2e 30 2e 30 20   0.0.0.0
0050: 61 74 20 6f 66 66 73 65   at offse
0058: 74 20 30 30 30 31 31 66   t 00011f
0060: 30 33 0d 0a               03..  
and also:
Event Type: Error
Event Source: Application Error
Event Category: None
Event ID: 1001
Date:  9/14/2010
Time:  11:58:45 AM
User:  N/A
Computer: ENTERPRI-0812A5
Description:
Fault bucket 1565094455.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 42 75 63 6b 65 74 3a 20   Bucket:
0008: 31 35 36 35 30 39 34 34   15650944
0010: 35 35 0d 0a               55..  
I went to the Microsoft page and it states that they have no idea of the problem. I tried to contact suppot by Adobe and what I get is the FAQ.
I reinstalled all again ) Premiere Pro CS 4 and added the 4.21 upgrade and also the 4.20 Media encoder upgrade.
The results that I am showing are afyert I did all the reinstalltion.
Please help on this matter because I cannot export anything

Answer 1

I found the answer in the Adobe document
http://kb2.adobe.com/cps/405/kb405950.html
This document shows the case of the many errores I suffered with Premiere Pro CS4. But my real problem was Media Encoder CS4 . Well I started to use the same steps of this article .
Step 5 does not apply.
Step 6 applies only in step 2. "Rename the 4.0 folder (for example, to Old 4.0) in C:\Documents and Settings\[your user name]\Application Data\Adobe\Premiere Pro. " There you look for Media Encoder and rename the 4.0 folder.
When you open again Media Encoder, it creates anew folder and PRESTO !!!
It works again !!!
Wolfgang