If you are not able to install the SSIS+ Suite and are getting an error like the one below whenever you try to install it, then there is a good chance that your anti-virus software is blocking the installation. Some anti-virus programs are very aggressive and can be the main reason for environment corruption.

Disable the anti-virus software temporarily and install the SSIS+ Suite while it is disabled. Then you can re-enable the anti-virus software again.