Another HP TRIM Outlook issue; this time when trying to check-in a mail item from Outlook, when the TRIM record type has an External Link associated with it – in this case a Generic AddIn (.NET). When the Outlook Add-In gets to the point that it is checking the file in to TRIM the error The specified module could not be found. (Exception from HRESULT: 0x8007007E) is thrown, but only if there is an AddIn associated with the record type of the record being created, otherwise it works fine.
As with most error messages this one is not very helpful, simply indicating that a module count not be found. Fortunately this was working on my local workstation, however the issue was present for test users on their thin client environment, so it was just a matter of finding out what was different between the two environments. After some investigating I remembered that I had manually added the TRIM client installation directory to the PATH system variable to enable running a web site which uses the HP TRIM SDK. Removing the installation dir from the PATH variable did indeed result in the same error message, and funny enough adding the dir back resolved the issue, on both my local instance and on the thin client instance. I don’t know why the TRIM client install doesn’t just add the TRIM directory to the PATH variable by default. Oversight by HP? I’m sure it used to be… there are also plenty of SDK related forum posts suggesting to add it when starting your application (that doesn’t really help in this instance).
To add the TRIM installation directory to your PATH system variable go to your system settings; (start » type “Edit the system environment variables”) or (start » right-click Computer » Properties » Advanced system settings) » Environment Variables » under System variables locate and select Path » click Edit » append your TRIM install folder (default TRIM installation directory should be either ;C:Program FilesHewlett PackardHP TRIM or ;C:Program Files (x86)Hewlett PackardHP TRIM depending on your installation preference.