Product(s):	Hevacomp Mechanical and Electrical Designer
	Version(s):	V8i (N/A)
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A

Overview

This error can occur for a number of reasons. Usually the Microsoft Install engine has become corrupt. However if software is frequently uninstalled and reinstalled this can also be due to the installer database becoming corrupt.

Method

A number of solutions to this issue are offered by at the Microsoft website.

Note that this is an operating system issue and is not systemic with software brand.