Please try to include as much information as possible in your posts; the more we know up front, the faster we can help you solve the problem.
The "khalmnpr.exe" program is a part of Logitech's mouse/keyboard software, but I can't tell you much about the error, as you've provided no details. Please give us the following information:
* The full and exact text of the error message(s).
* When do the errors appear? (when starting Windows? randomly? only when you perform a certain action? etc., etc.)
* The version of Windows that you are using.
* The version of the Logitech software, and the type of Logitech device you are using.
* Details on the history of the problem:
- When did it start happening?
- Had you added/removed/changed any hardware or software at about that time (think carefully)?