These errors can occur during your PC*MILER installation if you have an AntiVirus software (i.e. Webroot) that is restricting access to the directory where you are installing PC*MILER. If you receive either of these errors, we recommend making an exception for the PC*MILER installer and also whitelisting the ALK Technologies directory and subdirectories within your AntiVirus software.
If you have any further questions/issues, please submit a ticket to PC*MILER Support.