Moved to VirusScan Enterprise from Consumer for better attention.
Below are the answer of the queries.
1. What is the latest patch for my version of the VSE client?
2. Where can I download it?
Patch4 is on the download site (https://secure.mcafee.com/apps/downloads/my-products/component-downloads.aspx?re gion=us) under patches tab.
3. I am running epo Orchestrator 4.0.0(Build 1015). Is this compatible with the latest version and patch of the VSE client?
Yes, it's compatible.
4. Is it ok to install the latest patch in a standalone way to ensure that it doesn't interfere with the rest of our environment?
Yes, you can install it standalone.
Anyone know when patch 5 is due out? Is it in any special release right now?