KNOWLEDGEBASE - ARTICLE #1052
Ive created a log file to see why Prism won't open. The log file reports an "error 1009"
Here is what MSDN says about cause and solution for error 1009:
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CAUSE
This behavior can occur if the maximum registry size on the computer
is set lower than the current registry size. Multiple profiles become
locked in the HKEY_USERS hive.
RESOLUTION
To resolve this behavior, unlock the user profiles and then increase
the maximum registry size to be greater than the current registry
size.
To unlock the profiles that are locked in the HKEY_USERS hive:
NOTE: The settings in a deleted user profile will be lost. However,
you can save the profile settings before you delete the profile. Use
the Copy To function to copy the profile to a folder, and then after
you change the registry size, map the user account to the profile
in User Manager for Domains. If you do not copy the profile, a new
profile is created for that account when the user logs on, but it is
based on the default user settings of the local computer.
1. Identify the locked user profiles.
2. In Control Panel, double-click System, and then click User Profiles.
3. Click the username for the locked profile, and then click Delete.
4. Log off the computer, and then have the user log on.
To change the current registry size:
1. Click Start on the taskbar, point to Settings, and then click Control
Panel.
2. Double-click System, and then click Performance.
3. Click Change, and then increase the number in the Maximum Registry
Size (MB) box to be larger than the Current Registry Size.
4. Click OK, click Close, and then click Yes to restart the computer.
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You can search Microsoft's knowledgebase for more tips on solving this problem. Also, update your version of Windows to the latest update, update to IE 5.5 or later, and make sure that fonts Symbol, Wingding, Arial are installed.