File extension MAILHOST (.MAILHOST) information

If Windows is unable to open MAILHOST files you may not have the appropriate program installed or may have a registry related error. We strongly recommend that you run a free registry scan.

Appropriate program:

The .MAILHOST file extension identifies Microsoft e-mail preference files that come installed with MSN. You may have problems sending and receiving email if your .MAILHOST file is either missing or corrupted. In such circumstances you can restore this file by accessing the "Run" tool (found in the Start menu on windows), and then typing: regsvr32 c:\progra~1\msn\msncorefiles\mailui.dll. Incorrect associations are the cause of many file extension errors. Scan your system to prevent and identify association errors.

• Performance: To optimize memory and CPU usage for MAILHOST files run a free performance scan.
• Stability: Fix MAILHOST errors to make your system and applications more stable.
• Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.