Incremental Service Pack (SP1, SP2, etc) Does Not Install

Description

My installation of incremental Service pack fails. The installer prompts for accepting software license agreement and starts. It gets to reading the .CAB1 file, then goes away. How to fix it?

Solution

1. Make sure the version of Active-HDL installed is compliant with the service pack.

2. Close Active-HDL before installing the service pack.

3. If above doesn't help, reboot the machine in safe mode and try installing the service pack.