These errors are normally the result of temporary files left in the Windows Temp folder or not having the latest updates for the Windows Installer or InstallShield software on the cmputer. Clearing out the TEMP files and updating the Windows Installer and InstallShield software will allow installation to complete the installation of the software properly in most cases. Take the following steps to resolve these types of problems:

Download and install the latest Windows Installer updates:

1. Click on the appropriate link for your version of Windows below:
• Windows XP or 2000: Windows Installer 3.1
  
• Windows 98 or ME: Windows Installer 2.0
  
2. Follow the instructions at Microsoft's Web sites to download and install the latest updates for the Windows Installer on your computer. Once finished, restart the PC.

Next, download and install the latest updates for InstallShield's software:

1. Save the appropriate file below onto the desktop of your computer:
• Business Plan Pro 2006 or 2007
  IsScript11.zip (http://support.installshield.com/kb/files/Q108322/ISScript11.zip )
• Business Plan Pro 2005 or Business Plan Pro 2004
  ISScript8.zip (http://support.installshield.com/kb/files/Q108158/IsScript8.zip )
• Business Plan Pro 2003, Cash Compass, or Marketing Plan Pro 6.0
  ISScript7.msi (http://support.installshield.com/kb/files/Q108158/IsScript7.zip )
2. Unzip the above file using the WinZip utility (or right click and choose Extract All if using Windows XP).
3. After the file has been extracted, double click on the Isscript.msi file to install the Install Shield Script files.
4. Restart your computer.

Download the latest installer for your software:

1. Go to our web site: http://www.paloalto.com/sw
2. Enter the product information requested and click Go.
3. Download the installer for your software. When prompted, choose to save the file to disk and direct the file to the desktop of your computer.

'Clean Boot' your computer's operating system:

1. Close any open programs Click on Start > Run > type the following command and then click OK: MSCONFIG
2. Click on Selective Startup and then un-check the box for Load Startup Group items Click Ok to save the changes and then restart your computer
3. Once the computer has restarted, Clear the Windows Temp files:
1. Close any open programs
2. Click on Start, then Run, type the following command into the Open: box and click OK. %TEMP%
3. Click on Edit and then choose Select all
4. Press Delete to delete all of the temporary files in the directory
4. Finally, double click on the Installer program which was downloaded previously to install the software.
5. Once the software has been successfully installed and tested, return to the MSCONFIG utility and reset the computer to a Normal Startup.