~de1785.tmp is a temporary file that runs through the Windows registry. It may or may not be harmful to your computer. The best way to know is to run a registry scanner/cleaner on it. ZookaWare PC Cleaner is a registry cleaner that currently offers free scans to anybody that wants one.
A clean registry is important to proper computer function. The Windows registry can become damaged or cluttered for reasons having nothing to do with wrongdoing by the computer owner/user. Cluttered and damaged registries normally will slow down their respective computers, and occasionally even cause a system to crash!
If you would like a free scan to see if anything is wrong with your computer’s registry, feel free to head to http://www.ZookaWare PC Cleaner.com and see what you can find out. As the latest program from ZookaWare, a BBB certified company, you can trust that your computer’s registry will be in good hands