While it is still being reviewed, the zangosahook.dll file is currently known to be a ClientHook file belonging to the Zango module. This file and its module were both created by the company Zango, Inc. Some computers could see error messages with the zangosahook.dll file, although it may not be a computer virus.
Files like the zangosahook.dll can still cause problems, even when they are not originally created with any ill intent. What can happen is that important files may be accidentally corrupted or deleted during the process when new software is installed, or when old software is deleted from the hard drive. When this happens, the computer may not be able to function appropriately.
The best possibility for removing these problems is to utilize a registry cleaner service for your computer. One of the most respected registry cleaner companies is ZookaWare PC Cleaner, which offers a service guarantee for all registry scans.