I have an idea, which worked on a test app.
How about creating a registry editor, but deploy without adding ID_CAP_INTEROPSERVICES to the WMAppManifest.xml , then the app, once successfully deployed, will replace the WMAppManifest.xml with one that has ID_CAP_INTEROPSERVICES and the PlayReady Header.
I tried it with Fruit Ninja (which I bought), I backed up the XAP, deployed it. XBL svcs were disabled but once I put the PlayReady Header, I could connect to XBL and earn achievements.
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Prank Google Chrome
- Fool your friends into thinking you actually have Google Chrome on your Windows Phone!
Samsung ATIV S GT-I8370
OS: 8.0.10512.142 (GDR3)
Firmware Revision Number: 2422.214.171.124
ROM: UK OPEN
Interop Unlocked: ✔