Processing documents in parallel using appdomains

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Posts: 18
Joined: Tue Oct 30, 2018 12:14 pm

Processing documents in parallel using appdomains

Post by Kutusow » Thu Feb 28, 2019 11:47 am

Hey there,

I am currently trying to process ipxc_documents in parallel even though my main thread is STA. As a workaround I create a seperate appdomain for every document instance. These are created, when my wrapper class for the document is instantiated, which happens in parallel tasks. Now here is the issue:
When the document classes in the appdomains try to load a doc from file, i get this error:
Error [Pdf Structure Library]: Unknown/unsupport security handler.

When i put a lock statement around the creation of the appdomain and my call on CreateInstanceAndUnwrap(), I do not get exceptions anymore. Could this issue be related to simultaneous calls of OpenDocumentFrom()?

I would really appreciate your input on this issue,


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Sasha - Tracker Dev Team
Posts: 4852
Joined: Fri Nov 21, 2014 8:27 am

Re: Processing documents in parallel using appdomains

Post by Sasha - Tracker Dev Team » Tue Mar 05, 2019 9:53 am

Hello Kutusow,

I'm afraid, the response would be like this:

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