Accessing Office Word object model through asp.net results in “failed due to the following error: 80070005 Access is denied.”

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Ok, I resolved this problem with this steps:

  1. In the command line put DCOMCNFG
  2. Expand Console Root > Component Service > Computers, right-click on My Computer, And Select Properties
  3. In the Tab COM Security > Launch and Activation Permissions Click in Edit Default
  4. Add the User (Ex. IIS_IUSRS) or service
  5. Check Allow Local Launch and Local Activation

Then Excel, Word and other applications can work, good luck.

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