Recently (Well a few months ago) a client asked me to install multiple extra keyboards, on multiple (300+) PC’s through the organization, needless to say I was not to exited to do that manually, looking for options I discovered that there is no GPO available for it, and although it can be done through registry modifications, that whilst useful is not overly effective, so I wrote a GPO, at the time as it was a 2003 domain I wrote it as an ADM file, however as I was then asked for a similar thing (different languages) at a client with a 2008 domain the ADM files were useless (and so is ADMX Migrator from Microsoft/Full Armor, I recommend and use PolMan and its ADM Template Editor from SysPro [http://sysprosoft.com/products.shtml]) I re-wrote it for ADMX, and implemented it at a few client sites.
Forward to yesterday, a fellow tech at another client site had been asked the same thing, and came to me for advice on making their job easier, recalling these templates I promised I would forward it to them, which I did just moments ago (after making a minor modification and re-generating the ADMX to include a little joke for them, yet the inclusion is still useful for others, great how that works out hey) anyway I had always planned to release it to the public however I never had done, getting this request has prompted me to do it, currently there are 10 languages in there, I plan to add support for a bunch more in future and at the same time give Administrators and easy way to set the default keyboard layout but that will not happen till I have some spare time as at this point no clients require that functionality, if they do I will add it sooner
In the mean time download the file here, please note however, that the system contains no warranty whatsoever and although has been tested to work on Windows XP it is by far from guaranteed it is designed to work on Windows Vista and Windows 7
To install it just place it in the C:\Windows\PolicyDefinitions folder on your domain controller and restart Group Policy Editor, the settings show up under User Preferences > Administrative Templates > Keyboards
You can pass this on to others, so long as the work is still attributed to me, although I suggest you just point others here as it will allow them to get the latest version as it is updated