In an application, I open an Excel add-in. When I timed the statement that opens the add-in, I found that it depends on the location of the add-in (i.e the folder where it is located). When it is located in, say folder 1 I found tat it takes about 0.2 seconds to execute this statement, and when it is located in another folder (folder 2)it takes about 3.0 seconds to execute this statement. I have tried to make the folder settings (security) to be the same for both the folders, but I have not seen any change in the execution times. These folders are created by an installer of a software that I have installed on my machine. Are there folder attributes other than security settings, that I should be investigating ?

Hi, Based on my experience, this is not casued by the security setting or the folder attributes. This is the add-in behavior. Whether the add-in is a 3rd party add-in? If so, I think to contact the publisher for assistance is a better choice. Also, because this question is related to Office, you may post the thread at http://social.technet.microsoft.com/Forums/en/category/office2010 for help.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I analyzed bot the cases with PROCMON. What I found was that when the add-in load is slow there are a lot of file operations on a temporary file For example ReadFile C:\Users\...\AppData\Local\Temp\~DFAB5287321F97533B.TMP

Hi, Have you tried to post the thread at Office forums? The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.