If you want C, write a plug-in - once you've done that, you'll know why
Take a look at the documentation to learn about security and privileges: Go
then click on the
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Karl Heinz Kremer
Do you program in C?
If you want to write a plug-in in C you need to get the SDK and then you will need to install your plug-in on every user's system. And you would need some additional information/approval from Adobe.
You just need to figure out where to put the script.
I just prefer C over java, the language is more intuitive for me