Stamps.com Add-In Doesn't Work with 64-bit MS Word

Despite downloading the Add-in for Microsoft Word Home and Business 2016 to my Windows 10 64-bit machine it would not install. I could see the Add-in under File - Options - COM Add-ins, but despite trying to click the box to the left of it, it would not install.

After calling Stamps.com I found that it does not support 64-bit MS Word, it only supports the 32-bit version.

So to save you frustration I'm posting this to warn you.

A workaround is to print your envelopes using Mail Merge from MS Word without the stamps and then print them with stamps only from the online version of Stamps.com.

Here's more info  - lest you try to run 32-bit addins on a 64-bit installation.

I haven't tried Endicia? Are there other solutions?

http://stackoverflow.com/questions/3945799/using-32bit-com-addin-under-ms-office-64-bit

Check The Firewall For Norton Internet Security (as of Feb 2017) with Stamps.Com - or any other Program or App

This morning I checked the documentation on Stamps.com for how to configure the Norton Internet Security firewall and found it doesn't have the latest version. So here's how to do it (as it was I found it had already been configured when I eventually got to the right screen), but just in case you want to check too here are the screens.
First open Norton Internet Security. Then choose Settings at the top of the screen.

Next choose Firewall.

Then look at the tabs and choose Program Control.

You'll get a list of programs that are already penetrating the Firewall. It will tell you when you click on a program whether the Firewall is allowing one-way or two-way traffic and in which direction. Scroll down the window until you see the app. 

For Stamps.com the app is called ipostage.exe. Check that this file has supports two-way communications through the firewall.