方法:
Microsoft.SharePoint.Utilities.SPUtility.GetGenericSetupPath();
用法:
eg:获取12目录下features中的某个xml文件:
Microsoft.SharePoint.Utilities.SPUtility.GetGenericSetupPath("TEMPLATE\\FEATURES\\newFeature\\test.xml");
结果返回:C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES\newFeature\test.xml,一个完整的文件路径。