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Citrix AppLayer ID

Andrew Sommerer1709159658


To my knowledge all App Layers have a Layer ID. I wanted to see if when I created a new version of a Layer if this Layer ID is stored somewhere on the Update VM. Lets say I booted up a new Adobe Reader version which would be called Layer ID 0001. If I go and login to my update machine would some place on the Update VM could I go to see that ID referenced (Registry, some file)? 

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This actually also answer something I was curious on how the computer name was defined. The rtpackage seems to represents the Layer ID but is set to Hexadecimal. If you take the hexadecimal value and look at the computer name you can see the part after the computer name CITRXAL is the  Hexadecimal value. I find this to be really interesting and would like to say if the developers planned this my hats off to them.

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OK sorry i got more answers today and its a bit more complicated:


Here is the way it works:

"But to be really clear that is NOT where it is stored for the application layer when the application is created. The layer ID is created by the ELM and is stored effectively in the volume name. The volume is giving the name P<packageid-in-hex>V0R1. The customer should not think that looking in the unikcdrv is where they will find the id, because the subkey that houses the packages will be arbitrary since ulayer will mount them on a first come first serve basis. If they are just looking for the layer id only I would say they would look in disk manager and get the volume label. Reason being is that if they happen to be using the CE to generate the layer, they will see two IDs and that will make them get the wrong one.


Another way would be to look in the \Program Files\Unidesk\Uniservice\etc directory and do dir *.hive. There will be two present on a packaging machine. One for the OS layer which will be the same on every one, and one for the layer being created."

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