https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94379#M43788 Thank you for hint, although it was not easy to find the path it worked with the following: C:\Windows\assembly\GAC_MSIL\Microsoft.Office.Interop.PowerPoint\15.0.0.0__71e9bce111e9429c\Microsoft.Office.Interop.PowerPoint.dll Also office libray was required (got error messages from Blue Prism telling me to add it) which I found under C:\Windows\assembly\GAC_MSIL\office\15.0.0.0__71e9bce111e9429c\OFFICE.DLL Probably the reason is that on our clients 2 office versions are installed (2007 and 2010…)   Thanks again! Mon, 28 May 2018 12:52:00 GMT m.kocinger 2018-05-28T12:52:00Z https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94377#M43786 Hi there, I need to do some manipulations in PowerPoint and found that in Blue Prism V.5.0 the spying does not identify enough elements for my tasks. So I would like to write some Code actions in VB. In Visual Studio I would need to: add the Namesspaces Microsoft.Office.Interop and Microsoft.Office.Interop.PowerPoint  =>This I do in Initialise Part of my new VBO under Code options get Reference to Microsoft.Office.Interop.PowerPoint.dll => Here I have not succeded so far. I always got the message that this dll was not found Can you help me how to do the reference in Blue Prism?   Fri, 25 May 2018 19:04:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94377#M43786 m.kocinger 2018-05-25T19:04:00Z https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94378#M43787 Maybe try the full path to the DLL, eg C:\Program Files....Microsoft.Office.Interop.PowerPoint.dll Fri, 25 May 2018 19:29:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94378#M43787 John__Carter 2018-05-25T19:29:00Z https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94379#M43788 Thank you for hint, although it was not easy to find the path it worked with the following: C:\Windows\assembly\GAC_MSIL\Microsoft.Office.Interop.PowerPoint\15.0.0.0__71e9bce111e9429c\Microsoft.Office.Interop.PowerPoint.dll Also office libray was required (got error messages from Blue Prism telling me to add it) which I found under C:\Windows\assembly\GAC_MSIL\office\15.0.0.0__71e9bce111e9429c\OFFICE.DLL Probably the reason is that on our clients 2 office versions are installed (2007 and 2010…)   Thanks again! Mon, 28 May 2018 12:52:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94379#M43788 m.kocinger 2018-05-28T12:52:00Z https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94380#M43789 Hello m.kocinger I'm trying to do something like this, but with Outlook. I need to enable the ""vote"" option of outlook, but I cant do that... When I refence the DLL ""Microsoft.Office.Interop.Outlook.dll"" on the ""External Reference"" the BP show a message error about the compiler.. I tried to do it using a ""Global code"" but, I dont know how I refence the DLL... Can you help?   Thanks and Regards... Mon, 16 Jul 2018 00:29:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-get-reference-to-Microsoft-Office-Interop-PowerPoint-dll/m-p/94380#M43789 LucasCelio1 2018-07-16T00:29:00Z