RuntimeManager.Bind与RuntimeManager.BindLicense区别？

【解决办法】：
RuntimeManager.Bind 只是绑定一个产品，参数是Engine的话即绑定Engine产品，Desktop的话绑定Desktop，EngineOrDesktop的话会优先绑定Engine，没有安装Engine的话，绑定Desktop。
RuntimeManager.BindLicense 除了绑定产品外还绑定了主产品许可，第二个参数LicenseLevel可以是GeodatabaseUpdate，或者Standard，具体含义如下
Geodatabase update level. Corresponds to Standard or Advanced when the product code is Desktop; EngineGeoDB when the product code is Engine; and ArcServer when the product code is Server.
Standard license level. Corresponds to Basic, Standard or Advanced when the product code is Desktop; Engine when the product code is Engine; and ArcServer when the product code is Server.
另外，如果需要使用扩展许可的话还是需要使用IAoInitialize.CheckOutExtension来检出。