Gets or sets a value indicating whether to explicitly enable the root folder for indexing. Indexing is required for progress reporting to the Windows Shell. If the root folder is not under a directory that's already enabled and report progress to Windows Shell is desired, this property must be set to true. Only a Fixed drive can enabled for indexing. If this value was set to true and indexing is not possible, the value will be set back to false after registration code has ran.

public virtual bool EnableFolderIndexing { get; set; }