XBAP full trust deployment

I did the following steps to deploy my wpf application that need full trust permission:

1-Creating a certificate using makecert.exe

2-Creating signed application and deployment manifests.

3-Building a website in IIS to host files (include MyApplication.exe.manifest and MyAppicatio.xbap)

4-Adding certificate - used to sign manifests - to IE certificate store (Trustes Root Certification Authorities and Trusted Publishers) , IE Menu bar->Tools Internet O开发者_开发知识库ptions->Content->Certificates

But when i try to browse Xbap file in IE6 it throws Not granted exception for dowloading MyApplication.exe.manifest file.

When i grant access using caspol.exe tool to my deployment url , it works well.

But how can i make certifcate approach works correctly?

Thanks

I found the problem , my created certificate was out of date (expired).