Try this one:
This document pertains to HP and Compaq Desktop PCs with Windows 7, Vista, and XP.
An error appears that contains a filename ending with MSI. (MSI refers to the Windows Installer.) This error can appear while Windows is starting up or when a particular software program is opened. This error might appear after using a Registry Cleaner or Registry Fix tool.
See the following error examples. Your error might be slightly different, but it has a filename that refers to or ends with MSI.
The feature you are trying to use is on a network resource that is unavailable. Click OK to try again or enter an alternate path to a folder containing the installation package 'TrayApp.msi' in the box below.
'HPProductAssistant' the feature you are trying to use is on a CD-ROM or other removable disk that is not available.
Figure 1: Example of an MSI error
Using Recovery Manager to Restore Software and Drivers in Windows 7
HP Recovery Manager (Windows Vista)
HP application recovery process (Windows XP)
If errors persist, you can clean up the MSI registry entries by using Microsoft's automated solution. For more information, see Fix problems with programs that can't be installed or uninstalled
Preventing MSI errors
To prevent these errors from occurring, make sure that registry cleaning and spyware removal utilities do not remove files and registry entries associated with your software. Instead, if you no longer use a particular software title and want to remove all references from the registry, remove the software by using the Add or Remove Programs
tool in Control Panel. The software uninstaller will remove the associated entries from the registry.
Some products available for free on the Internet suggest that the registry needs regular maintenance or cleaning. However, use extreme caution when installing and using a registry cleaner. Many registry cleaners generate other MSI errors because they do not recognize valid registry entries and delete them. This can cause more MSI errors and prevent other programs from working.
If you do decide to install a registry cleaner, be sure to research the product thoroughly, and then download and install programs only from software publishers that you trust
[img src="http://h10025.www1.hp.com/ewfrf-JAVA/Image/common/note.png" alt="" >
NOTE:One or more of the links above will take you outside the Hewlett-Packard Web site. HP does not control and is not responsible for information outside the HP Web site.