I went to Access Permissions under the Security tab. All I see is Allow Local Access and Remote Access. Allow Local is already checked. Am I missing something? Windows 2003 is on the server.
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Can't access Excel get error message: System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID
I’m using Visual Studio 2005 to do the development.
I need ASP.NET to:
1. Take data from an SQL database.
2. Put data into an Excel spreadsheet (that is already created).
3. The Excel Spreadsheet then does some calculations.
4. ASP.NET saves and copies the spreadsheet with new name.
The only thing not working is putting data into the Excel Spreadsheet (that is already created). It works on the desktop but when I run it on the server I get the following error message:
File Creation failed. Reason is as follows System.UnauthorizedAccessE
'-------------------------
'Produce a Excel spread sheet
'-------------------------
Dim dsExcel As DataSet = DGS.OTR.FAS.Business.Trans
Dim Excelrow As DataRow
Dim i As Integer
Dim MyExcel As New Excel.Application
Dim oWorkbooks As Excel.Workbooks = MyExcel.Workbooks
It errors out on Dim MyExcel As New Excel.Application. Excel is on the server. It appears to be a permssions problem.
I don’t like doing it this way but was directed to put Excel on the server. I didn’t create this someone else did. I was just assigned the task of making it work. Personaly I would like it to access Excel on the desk top.
Can anyone tell me how to fix this problem or give me links to a site that will tell me how to fix this problem? If it’s easyer to use Excel on the desk top I’d be happy to change it. I just don’t know how to do it. Can someone tell me our give me some sites that have instructions.
Thank you for any help you can provide.
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by: weichunglowPosted on 2006-08-14 at 09:07:56ID: 17311264
Please try this:
http://forums.microsoft.co
The solution is in non-english, however, this is what translated by Google:
- Control panel: tool of administration
- Services of components
- Configuration DCOM
- To select EXCEL Application -
properties mitre safety -
to personalize the authorizations of execution and activation (button to modify)
- to add to the list of users ASP.NET and to give the all authorizations
==========================
I have done similar configuration before:
Cotnrol panel > Component Services>
Console Root > Component Services > Computers > My computer> DCOM Config > Microsoft Excel Application
Right click > Properties
Security tab> For each of the permission configure the necessary permission to ASPNET user. In winxp, it will be ASPNET; for win 2003 it will be IUSR_MACHINENAME
hope it helps