Windows XPsp2 Installer 3.1 error "The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or if the Windows Installer is not correctly installed. Contact your support personnel for assistance." Above is the error when trying to install NAV 10.1.6.6000 on a Windows XP sp2 system. We have tried uninstalling and re-installing Windows Installer 3.1 (latest for XP), unregister and register the msi.dll, also the msiexec.exe. System is running in normal mode. We have uninstalled NAV 10.1.5.x manually as it we were not able to uninstall thru Add/Remove. Feedback and solutions appreciated. Bob Bob Schneider L3 Communications/ILEX Systems IAVA Support 246 Industrial Way West Eatontown, NJ 07724 Phone: (732)380-9400 x 3503 mailto:robert.schneider@xxxxxxxxxx DISCLAIMER: E-mail Confidentiality/Proprietary Notice: The information contained in this transmission is confidential/proprietary and may be subject to protection under the law. The message is intended for the sole use of the individual or entity to whom it is addressed. If you are not the intended recipient, you are notified that any use, distribution or copying of the message is strictly prohibited. If you received this transmission in error, please contact the sender immediately by replying to this e-mail and delete the material from any computer. Thank you.