When attempting to install DocGen VSTO:
"Downloading file://.....Qorus.DocGen.Addin.Word.Dll.manifest did not succeed"
Please carry out the following steps:
1. Make sure there is no add-in installed. Check in "Add/Remove Programs".
2. Make sure all instances of Word/PowerPoint are closed.
3. Open command prompt.
4. Run the following command:
rundll32 dfshim CleanOnlineAppCache
5. After that has been run, try install the add-in from the files again.
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