BUG #4508: bug #4389 could not reattach to shared memory

The following bug has been logged online:

Bug reference:      4508
Logged by:          dta
Email address:      daniel.tasseroul@siemens.com
PostgreSQL version: 8.3
Operating system:   Vista (windows 2008)
Description:        bug #4389 could not reattach to shared memory
Details:

Hi,
when I follow the advices in the different posts :
- remove the postgresql.pid (can't see this file) ;
- run sfc/scannow
I still have the error
"could not reattach to shared memory ".
 Is there a patch for that ?
  What are the consequences ?

The database will go into production very soon.

Any help will greatly appreciated !!

Best regards,
Daniel Tasseroul