Failed to create COM objects on AX 4 AOS

You may come across this issue when attempt to initialize a COM object on AX 4 AOS server side:
static server void ActivateCOMOnAOS()
{
#define.Word(‘Word.Application’)
COM com;
InteropPermission permission = new InteropPermission(InteropKind::ComInterop);
;
permission.assert();
//BP deviation documented
com = new COM(#Word);
CodeAccessPermission::revertAssert();
}
And an error message will appear:
COM object of class ‘Word.Application’ could not be created. Ensure that the object has been properly registered on computer ‘ComputerName’.
It is because by default, Microsoft Word as a COM object can not be launched by the user NT AUTHORITY\NETWORK SERVICE.
The way to resolve this issue is to modify the Activation permission for Word Application using the Component Services administrative tool.
Configure DCOM (Windows 2003)
  • Start -> All programs -> Administrative Tools -> Component Services.
  • Expand Component Services
  • Expand Computers
  • Expand My Computer
  • Select the DCOM Config item
  • Select the Microsoft Word Document item.
  • Right click and select Properties
  • Under Launch and Activation Permissions select the Customize option.
  • Click the Edit button
  • Click the Add button to add a new account to the list.
  • Click the OK button
  • On the dialog that is displayed enter Network Service as the account name.
  • Grant Network Service the launch and activate permission.
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