Error: HttpException (0x80004005): 
Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed 


Case: Automation of word document in ASP.Net works fine when in debug mode but when published, generates COM Class error.


1. in your web.config
<system.web>
...
 <identity impersonate="true" userName="allowedUserName.domain" password="thePassword"></identity>
</system.web>

2. in dcomcnfg
Component Service -> My computer -> DCOM Config


find MSWord Process, then set 
Security -> Launch And Activation Permissions, etc as "Customize".  Add user "allowedUserName.domain" with the following permissions: local launch = allow, local activation = allow









 


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    About the Author

    The author have 12+ years experience in IT Industry with varying job roles from system developer/analyst/consultant positions. Majority of her development, implementation and systems support background focus on Financial/Banking/Credit Solutions.

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