Unfortunately getting a response from adobe is like talking to a halfwitted child.
See Email #1 -
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Hello Matthew,
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Thank you for contacting Adobe Support.
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With regard to your issue, please refer to the url:
www.adobe.com/products/acrobat/deployment.html_ for further support on Silent Installation for Acrobat.
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Should there be anything else, feel free to contact us back. Please indicate your Case ID on the subject field of the email for reference.
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Regards,
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Mylia
Adobe Asia-Pacific Support
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and Email #2
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Hello Matthew,
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Thank you for your email.
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We are sorry to inform you that the issue is beyond our technical knowledge._ This support center only supports issues regarding local machine installations._ That is why we would like to refer you to the url previously provided or to our partners, which are mainly in-charge of such issues:
http://partners.adobe.com._
Hoping for your consideration.
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Feel free to contact us back for futher information. Please indicate your Case ID on the subject field of the email for reference.
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Regards,
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Mylia
Adobe Asia-Pacific Support
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Adobe admit that they have no clue and their support staff only support local installs.
Looks like I'm doomed to trawl Bulletin boards.