Excel Add-Ins & Virtualization RRS feed

  • Question

  • Our software package includes an Excel add-in (.xla file) which we typically install into our application directory, which defaults to a subdirectory under Program Files.  When testing our software on a Vista machine, we discovered that the xla add-in file was being virtualized every time Excel was opened.  We want to avoid this.

    Copying this .xla file into every User's personal folder is not only impractical, but it makes updating a nightmare.  Our updating software would have to find a list of all the computer's Users and update the file in every User's directory.

    The funny thing is, we tried changing the .xla file to be read-only, and our software worked.  However, our updater program can't replace a file that is read-only.

    Is there supposed to be a standard place to install Excel add-ins so that they don't get virtualized?  Has anyone else had this problem?
    Thursday, July 26, 2007 10:59 PM