AO9.0中如何创建栅格目录

我在用AO创建栅格目录表时，当程序运行到：

  Set pTable = pFeatureWorkspace.CreateTable(sName, pFields, pUID, Nothing, sKeyWord) 时出现错误：

The application is not licensed to create or modify schema for this type of data

我在AO帮助里面查找CreateTable方法，里面有这么一句话：

Functional License Check

If your application/site is not appropriately licensed, CreateTable can return an Err.Number of FDO_E_NO_SCHEMA_LICENSE.

不知道这是不是没有License许可的缘故呀。我现在用的许可都是从网上找的。不知大伙有谁可曾遇到这样的问题？

确实是License的问题，我在它的在线帮助中找的：

All the ESRI-developed components handle the different possible deployment options in a unified manner. The functionality available with these different deployments is controlled via a license. This means that if a user installs a new license, the software does not require a reinstallation to access the functionality permitted under the new license.

ArcObjects performs several types of license checking:

• Application: Each ArcGIS application requires a valid application license to run.
• Extension: Extension products also have licenses associated with them.
• Component: The components within ArcObjects perform license checking.
• Functional: When methods are executed, the behavior of the method varies depending on the available licenses.

如果是license的原因，那么也就是说以前网上流传的所谓完整授权码并不完整了？我就纳了闷了，为什么对一个方法也要检查它的License呢？