I have a 3.5 .Net application that I have created. I have used the ClickOnce setup and deployment for putting this out on a fileshare on my local network. I am using Microsoft office in my references for printing purposes, it works so much easier then anything else. The publish seems to work fine. On my PC it works like a charm no problem. On any other PC the user goes to the file share and clicks on the setup.exe and it does the setup and seems to work just fine. As it's checking components before I get to the logon screen everyone gets this error... System Update Required This assembly is unable to be installed. The assembly Microsoft.Office.Interop version 11.0.0.0 needs to be installed in the Global Assembly Cache. I have tried making office a prerequisite and not and I still get the same error message. I'm really pulling my hair out, I had 3 customers at my local to test this application and I have been unable to make it work this way. I even uninstalled Microsoft Office on one PC and reinstalled and it still doesn't work. I have been searching all over the web for this same problem and no one seems to have this exact problem. I chose this option because making sure that everyone has a current installation on their desktops is a nightmare and using a fileshare on the local network is convenient and easy for everyone. This should not be so difficult! Other window forms applications I can just put everything on a file share and setup a script to do some registry updates and everything is great. PLEASE HELP!!!

Thanks, Tambra

Tambra1,

Have you tried deploying the Office Primary Interop Assemblies (PIAs) as a prerequisite? It sounds like you have some interop code, and haven't deployed the assemblies used to communicate betweeh .NET and Office's COM interface. You could try installing them on one computer and seeing if it fixes the problem; I'm betting it will.

RoibnDOtNet

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