Forum Discussion
Hi Cameron45
The log that you've attached mentions this specific error "Unable to cast COM object of type 'Microsoft.Office.Interop.Outlook.ApplicationClass" which is an interop error meaning when a program such as AccountRight asks which version of Office/Excel is installed, the wrong version is being reported back, causing a communication problem and errors between the programs.
This can happen when different versions of Office/Excel may have been previously installed on the computer, and components/values are left behind.
There is a range of interop errors, these most often are fixed by one of the following:
B. Re-Register DLL files and Check/Fix Registry Keys (there are 3 to complete)
Step B would require an IT Professional as its an environmental issue, with windows having missing or incorrect information and this help article has similar instructions which might help:
Thanks for the reply. I have tried all those suggestions, but the problem still exisits. Are there any other options?