Try the following:
________________________________________________________
First of all make sure you have the latest version of the Help Centre:
<
http://www.adobe.com/support/downloads/product.jsp?product=1 07&platform=Windows>
The updated Help package for Photoshop is available from:
<
http://www.adobe.com/support/downloads/detail.jsp?ftpID=3088>
If you still have problems:
There are two techdocs concerning Help Centre Problems:
332006 Error "Model subsystem error: 1016" when you start Help Center from any CS2 application
<
http://www.adobe.com/support/techdocs/332006.html>
331717 Help window doesn’t appear when you start Adobe Help Center (Windows XP, 2000)
<
http://www.adobe.com/support/techdocs/331717.html>
Also, it may be worth trying the following:
Assuming ahc.exe is located in C:\Program Files\Adobe\Adobe Help Center, delete the following folders
C:\Program Files\Adobe\Adobe Help Center\AdobeHelpData\Cache C:\Program Files\Adobe\Adobe Help Center\AdobeHelpData\Database C:\Program Files\Adobe\Adobe Help Center\AdobeHelpData\Preferences C:\Program Files\Adobe\Adobe Help Center\AdobeHelpData\Search
The only folder under C:\Program Files\Adobe\Adobe Help
Center\AdobeHelpData you should have left is one called packages. Run ahc.exe
What should happen is that your help center database should get rebuilt (you will see progress messages as it process each help package) and everything should work.
