Thanks for showing interest in Chemistry Word add-in.
Please make sure that you are installing the Chemistry Word add-in as an admin. You need to have the administrator privilege for installing the Chemistry word add-in set up for “All users” installation.
If you have installed it in admin mode and Chemistry ribbon is not appearing, please look for the following things:
Look for Chemistry Word Add-in Registry Entry:
Enter “regedit” command in Start
menu and press enter
It will open up you a Registry Editor
Expand the Tree folder structure \HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Word\Addins\Chemistry Add-in for Word ( this folder structure should exist, if installation was successful)
In the right side pane, you could see Keys defined for the “Chemistry Add-in for Word” registry. In that, please make sure the value of
LoadBehavior key of type REG_DWORD is set to 3. If it is not set to 3, right click on
LoadBehavior key and select Modify and enter 3 at
Now, close old instance of word if it was opened, and open a new instance and see Add-in is loading or not.
Check for whether the Add-in disabled:
Please follow the steps provided at the link
http://msdn.microsoft.com/en-us/library/ms268871(v=VS.80).aspx to re-enable the disabled add-in.
If the “Chemistry” ribbon is still not loading, please, create an environmental variable called “VSTO_SUPPRESSDISPLAYALERTS” and set its value to
0. Now, open a new instance of word application. If there any problems while loading the add-in, it will display the pop up containing the “Exception/Error message”. The message tells you the details of what is preventing word to
load the add-in. Please send that exception message to us, we will take a look at it and we will suggest you appropriate solutions to resolve the same.
We hope that, above details would help you to resolve your issue. Also, let us know if you have any further queries.
MSR ER Customer Support Team