File Types Permitted in an Updatable Help CAB File
Updated: March 23, 2012
Applies To: Windows PowerShell 3.0
This topics lists and describes the content requirements for Updatable Help CAB files.
Updatable Help CAB File Requirements
To assure the security of help files that are downloaded from the Internet, an Updatable Help CAB file can include only the file types listed below. The Update-Help cmdlet validates all files against the help topic schemas. If the Update-Help cmdlet encounters a file that is invalid or is not a permitted type, it does not install the invalid file and stops installing files from the CAB on the user's computer.
XML-based help topics for cmdlets.
XML-based help topics for scripts and functions.
XML-based help topics for Windows PowerShell providers.
Text-based help topics, such as About topics.
The Update-Help verifies the CAB contents when it unpacks the CAB. If Update-Help finds non-compliant file types in an Updatable Help CAB file, it generates a terminating error and stops the operation. It does not install any help files from the CAB, even those of compliant file types.