I've been updating the network installation filed for Acrobat using the following command:
msiexec /a AdbeRdr930_en_US.msi /p AdbeRdrUpd934_all_incr.msp
This has worked fine for all versions up to 9.4
I've downloaded AdbeRdrUpd940_mui.zip from which I get a AdbeRdrUpd940_mui_cum.msp.
This file does not work with the msiexec command above
Does this mean I'll have to start with a new network installation of 9.4?
Earlier it worked fine for you because the previous versions were patch installers.However Reader 9.4.0 is a full installer so you need to create a new Administration Installation Point(AIP) using command :
msiexec /a AdbeRdr940_en_US.msi
Since AIP is created using the latest full installer so you dont need to use any previous patches.
To download Reader 9.4.0 msi follow link below:
For more details on AIP see link below:
Note: Reader(normal) and Reader MUI are different products and have separate patches. So dont get confused. For more details see http://forums.adobe.com/thread/717639