SYMPTOM
You download MovAlzyeR.MSI from www.neuroscript.net but when running the MSI you get:
This installation package could not be opened.
Contact the application vendor to verify that this is a valid Windows Installer package.
This may happen even if you managed to run and install the same MSI file on another Windows XP computer.

This and similar error message have been reported by Microsoft: http://support.microsoft.com/kb/236597

This page provides the following info:

CAUSES
1. The download my have been cut off so that the MSI file after download is shorter than the MSI file on www.neuroscript.net. For example, the Movalyzer.msi for Version 6.1 should be exactly 41,064,448 Bytes (39.1 MB). Rightclick on the downloaded file and check its properties.

2. The locally cached Windows Installer package (.msi) file is damaged or corrupted.

RESOLUTION
1. Download in a different way, e.g., using another browser or by choosing Save first and then Run or Run from the website or rightclick on the link and choose another option, etc. If the dowloaded file does not have the exact number of Bytes, no use to run the MSI program.

2. Update Windows with the latest version of Windows Installer. Visit the Microsoft Web site:
http://www.microsoft.com/downloads/d...DisplayLang=en
For more information about this issue, click the following article number to view the article in the Microsoft Knowledge Base:
229819 (http://support.microsoft.com/kb/229819/ ) Error message when you install or upgrade the Windows Installer