Contents

/classification update_classification

/severity severity_level

/product "product_name"

/match "regexp"

/nomatch "regex"

/matchfile file

/nomatchfile file

/isdownloaded 1|0

/classification update_classification

Available in WuInstall Pro

Each update has a certain classification. It is possible to filter results of a search (which match the specified criteria) by classifications.

Classifications are:

o Critical Updates: Broadly released fixes for specific problems addressing critical, non-security related bugs.

o Updates: Broadly released fixes for specific problems addressing non-critical, non-security related bugs.

o Update Rollups: Cumulative set of hotfixes, security updates, critical updates, and updates packaged together for easy deployment. A rollup generally targets a specific area, such as security, or a specific component, such as Internet Information Services (IIS).

o Security Updates: Broadly released fixes for specific products, addressing security issues.

o Service Packs: Cumulative sets of all hotfixes, security updates, critical updates, and updates created since the release of the product. Service packs might also contain a limited number of customer-requested design changes or features.

o Feature Packs: New feature releases, usually rolled into products at the next release.

o Definition Updates: Updates to virus or other definition files.

You can combine classifications by just combining the letters:

C (Critical Updates)

U (Updates)

R (Update Rollups)

S (Security Updates)

E (Service Packs)

F (Feature Packs)

D (Definition Updates)

For example

WUInstall.exe /search /criteria "IsInstalled=1" /classification CRSE generates the following output:

                       

/severity severity_level

Available in WuInstall Pro

Each security update has a certain severity level. It is possible to filter results of a search (which match the specified criteria) by severity levels.

Severity levels are:

o Critical: A security issue whose exploitation could allow the propagation of an Internet worm without user action.

o Important: A security issue whose exploitation could result in compromise of the confidentiality, integrity, or availability of users' data, or of the integrity or availability of processing resources.

o Moderate: Exploitation is mitigated to a significant degree by factors such as default configuration, auditing, or difficulty of exploitation.

o Low: A security issue whose exploitation is extremely difficult, or whose impact is minimal.

o Unknown: all updates, which are not a security update.

You can combine severity levels by just combining the letters:

C (Critical)

I (Important)

M (Moderate)

L (Low)

U (Unknown)

So the command

WUInstall.exe /search /severity CIU

filters the result list of the search to contain only updates with severity Critical, Important and Unknown:

                       

/product "product_name"

Available in WuInstall Pro

Each update belongs to a product (for example Office 2007, Windows 7, Forefront Client Security, ...). It is also possible to filter results of a search (which match the specified criteria) by a product name.

No wildcards are possible, the product name has to be an exact match. Currently, you can only filter one product.

So for example the command

WUInstall.exe /search /criteria IsInstalled=1 /product "Forefront Client Security"

gives the following output:

                       

/match "regexp"

This option filters each update in the result list if the title of an update matches the search string specified with the regexp parameter (in WuInstall Pro, also regular expressions are possible).

You can search, for example, just for all updates matching KB890830 with:

WUInstall.exe /search /match KB890830 /criteria IsInstalled=1

                       

With using regular expressions, you can do some more complex queries. For a good explanation of regular expressions see http://www.cs.tut.fi/~jkorpela/perl/regexp.html

For example, searching for all updates that match "Internet Explorer 8", the Term "Language" or "KB89", you type:

WuInstall /search /match "(Language|KB93|Internet Explorer)"

                       

/nomatch "regex"

Available in WuInstall Pro

This is quite the opposite of the /match option: it filters out all the updates that do match the regular expression and displays the rest (=the updates which do NOT match).

Obviously it is very useful for excluding certain updates.

For example, to filter out all updates that do not contain the words "Microsoft" or "Windows" (there are not many updates that do so ...) use:

WUInstall.exe /search /criteria "IsInstalled=1" /nomatch (Windows|Microsoft)

                       

Of course, /match and /nomatch can also be combined.

/matchfile file

Available in WuInstall Pro

With the /matchfile option you can specify multiple /match parameters.

Just write the desired update matches (regular expressions are supported) into a file and specify this file as the matchfile.

For example, create the file "updateList.txt" with the following content:

                       

The match entries are separated with a newline. The file has to be either in UTF-8, ANSI or DOS character set. UTF-16 is not supported.

WuInstall lists all the updates in the result list, which match AT LEAST ONE of the lines in the file.

If you type

WUInstall.exe /search /matchfile c:\updateList.txt

WuInstall gives for example the following result list:

                       

This option is useful when you keep a central list of updates to be rolled out on your machines in a shared directory (use this list as the matchfile).

/nomatchfile file

Available in WuInstall Pro

/nomatchfile is quite the opposite of the /matchfile option: use it if you want to specify multiple /nomatch paramters (if you want to exclude a list of updates).

WuInstall lists all the updates in the result list, which match NONE of the lines in the file.

Just write the update matches that should be excluded (regular expressions are supported) into a file and specify this file as the nomatchfile.

For example, create the file "exclude.txt" with the following content:

                       

The exclude entries are separated with a newline. The file has to be either in UTF-8, ANSI or DOS character set. UTF-16 is not supported.

If you type

WUInstall.exe /search /nomatchfile c:\exclude.txt

                       

/isdownloaded 1|0

Available in WuInstall Pro

This options filters updates which have already been downloaded to the local cache.

You can call for example WuInstall with the /download options combined with some filters to download all available updates:

and then later use:

WUInstall.exe /install /isdownloaded 1

You will get following output:

                       

Deleting updates manually from the local download cache (usually Windows\SoftwareDistribution\Download) might cause this option to work incorrectly, because even deleted they are still considered as downloaded.

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