Hi Eric,

Check out the following link to see if it solves your problem:

http://groups.google.com/groups?hl=en&lr=&threadm=O0ge1dtoDHA.3504%40TK2MSFTNGP11.phx.gbl&rnum=12&prev=/groups%3Fq%3Dexcel%2Bdcom%2Basp.net%26start%3D10%26hl%3Den%26lr%3D%26selm%3DO0ge1dtoDHA.3504%2540TK2MSFTNGP11.phx.gbl%26rnum%3D12


>I'm getting an access denied to launch an excel object with an ASP.NET application on Win2003.
>
>Does anyone know which users need to be added with DCOM permissions to allow the web app to launch and use Excel? I have tried everything obvious.