Unable to exclude .pob file from standard scan

[metacipher]

First, love the product, I have thankfully weaned 4 of my client sites off of Norton and McAfee and put them on system wide Avast. So much easier and effective.

My problem is one of my clients is using Pro 4.x and trying to print a document from some tax software. She is able to print but she always receives an error saying "Unable to open serialized file "[file path]/[tmp filename].pob"

I go to the Standard Scan option and the .po? is listed in the default list of extensions and considered a dangerous extension. So I tried going to the advanced tab and adding everything I could think of. I'm thinking one of two things...

either adding extensions or paths in the advanced tab doesn't fix my problem or Avast is disrupting the print process on a different file. If I disable Avast all together I don't receive any errors.

How do I keep Avast from scanning .pob files?

[DavidR]

In the standard Shield, Customize.... , Advanced 1. Add 2. Enter the file type to be excluded, I have used the wildcard *.pob, you could be more specific by giving the path to the folder where these are and then *.pob this would be less of a risk if as you say po? is in the files that are scanned. 3. Click the return or enter key to complete the addition of the new exclusion.

[Lisandro]

Maybe you have to boot after adding the extension to the exclusion list...