It has been noticed on win7 that after installing fx runtime, applications signed by trusted signer CA are ended up showing as UNKNOWN publisher inside the security pop-up. Main reason could be that there is no security store inside fxruntime/lib/security folder and fx runtime is not able to read security store under jre/lib/security

Steps to reproduce:
1) Install jre7, run bugster application as follows (remove security store from user level)
javaws http://busgter.sfbay.sun.com
Security pop-up is going to be there and one can notice that signer CA is trusted and publisher is displayed as
"Bugster ....Sun Microsystems..."
2) Install fx runtime
3) Close bugster and clean up deployment user home
4) Launch bugster again as javaws http://busgter.sfbay.sun.com
This time on security pop-up you notice publisher as "UNKNOWN" then bug is reproduced