According to Google's docs (https://developer.android.com/training/in-app-billing/preparing-iab-app.html#GetSample) the Google Play Billing Library, required for in-app purchases and subscriptions, is obtained from the Android SDK Manager, in the Extras section.
In my Android SDK Manager Extras section, it only shows - 1) Android Support Libary, 2) Google Play services and 3) Intel x86 Emulator Accelerator.
I am rather sure that the Google Play services is NOT the Billing Library.
Let me mention that my Eclipse is v2.0.1.20130919-0803 and there is an update available. Also my SDK Tools are rev 22.3 and SDK Platform-tools are rev 19 (there are updates for both).
I would rather NOT get the updates at this time. Must I, in order to get the Billing Libaray?
Thanks Paul