I came about an error a while ago but couldnt replicate until yesterday.

On opening PowerArchiver and viewing a PDF Document within the Preview Pane. “any PDF” this works with no issues… Close PowerArchiver.

Now follow these Steps

Step 1 - Open Adobé Reader X “10.1.2.45”
Select any PDF you like and press the email button select “attach to email” within the right side pane. This opens outlook in a template for you to construct an email. From this point just close or send it, it wont really matter.

Step 2 - Open PowerArchiver and view any PDF then close PowerArchiver.

The Following Error Message apears;

I created a Techsmith Jing .swf example of this for you via my livedrive account.
http://omega.livedrive.com/item/686d2f2c9cd743268108471791aa2445

PS: This was on an XP Pro SP3 system. Using the latest version of Adobe Reader and PowerArchiver.