Thank you for your reply, Owen. On this machine, my Windows OS is installed in the C:\Winnt folder. The systemroot and windir environment variables also indicate that the OS is located in the C:\Winnt folder. I do have a C:\Windows folder that was created by Adobe Acrobat 7 Pro. It only contains one folder (winsxs) that Adobe Acrobat seems to require along that path. If I delete the C:\Windows folder and then execute Adobe Acrobat, Acrobat will automatically re-create those folders and continue normally. I always thought that was strange behavior for Acrobat since the OS folder is C:\Winnt and the Winnt folder has the correct C:\Winnt\Winsxs folder. But I've learned to live with it. Still, based on what you stated, I added a Temp folder to the C:\Windows path that Acrobat uses and rebooted. The error dialog does not present itself anymore. So your fix did work. The Pogoplug software should use one of the system or temp environment variables to locate a proper and existing Temp folder.

Thank you for your assistance.