I am always missing a table which list all SymbianSigned capabilities and option I do have to use them. Such table of course exit in SymbianSigned documentation but it is just too well hidden in a middle of a document.... So here is a short reminder for you too:
SymbianSigned and Capabilities
| Capability | User grantable | OpenSigned
(without ACSID) | OpenSigned
(with ACSID) | ExpressSigned | CertifiedSigned |
| LocalServices | Yes | Yes | Yes | Yes | Yes |
| Location | Yes | Yes | Yes | Yes | Yes |
| NetworkServices | Yes | Yes | Yes | Yes | Yes |
| ReadUserData | Yes | Yes | Yes | Yes | Yes |
| UserEnvironment | Yes | Yes | Yes | Yes | Yes |
| WriteUserData | | Yes | Yes | Yes | Yes |
| PowerMgmt | | Yes | Yes | Yes | Yes |
| ProtServ | | Yes | Yes | Yes | Yes |
| PowerManagement | | Yes | Yes | Yes | Yes |
| ReadDeviceData | | Yes | Yes | Yes | Yes |
| SurroundingsDD | | Yes | Yes | Yes | Yes |
| SwEvent | | Yes | Yes | Yes | Yes |
| TrustedUI | | Yes | Yes | Yes | Yes |
| WriteDeviceData | | Yes | Yes | Yes | Yes |
| CommDD | | | Yes | | Yes |
| DiskAdmin | | | Yes | | Yes |
| NetworkControl | | | Yes | | Yes |
| MultimediaDD | | | Yes | | Yes |
| AllFiles | | | | | With Manufacturer Approval |
| DRM | | | | | With Manufacturer Approval |
| TCB | | | | | With Manufacturer Approval |
User Grantable capabilities are the only one you can use if you want to distribute an application without buying an ACSID from TC TrustCenter.
Open Signed application can be distributed on a limited set of devices (you need to provide the IMEI before signing the application).
Express Signed or Certified Signed are generally required if you intend to distribute commercial applications (at least through operators, etc...).
Other SymbianSigned stuff
very good.
It is wrong , the capability of "WriteUserData" belongs "User grantable",I??????????????????????????????