Known MAILHOST Files

Primary MAILHOST File Association

.MAILHOST

Formatting:	.mailhost
File Type:	MSN Mailhost Settings File

MAILHOST file stores preferences for MSN e-mail server that installed with MSN software and use to check and send e-mail.

Created by:	Microsoft Corporation
File Category:	Settings Files
Entry:	HKEY_CLASSES_ROOT\.mailhost

Software Programs That Open The MSN Mailhost Settings File:

MSN Explorer by Microsoft Corporation

Windows

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MAILHOST File Complications

Issues Opening MAILHOST Files

MSN Explorer Disappeared

You attempt to load your MAILHOST file and get an error such as "%%os%% Can't Open The MAILHOST File Extension". Usually, this is because you do not have MSN Explorer for %%os%% installed. The typical path of opening your MAILHOST with a double-click won't work because %%os%% cannot make the program connection.

Tip: When another MAILHOST application is installed, you can choose to open it by selecting "Show Apps" and using that program.

Outdated MSN Explorer

It is possible that your version of MSN Explorer isn't able to open your MSN Mailhost Settings File file due to incompatibility. If you've got the wrong version of MSN Explorer installed, you'll need to install the correct version. This problem is predominately due to having a MSN Mailhost Settings File file version that was created by a newer version of MSN Explorer than what you have installed on your PC.

Tip: Investigate your MAILHOST file by right-clicking and selecting "Properties" to find clues on what version you need.

Regardless, most of the MAILHOST file opening problems relate to not having the right version of MSN Explorer installed.

More Causes of Problems Opening MAILHOSTs

Although you might already have MSN Explorer or another MAILHOST-associated software installed on your computer, you can still encounter problems opening MSN Mailhost Settings File files. There can be external issues inside of %%os%% that are causing these errors when opening MAILHOSTs. These other problems include (listed in order from most to least common):

• Invalid MAILHOST file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Unintentional removal of the description of the MAILHOST file inside the Windows Registry
• MSN Explorer or another MAILHOST application experienced a flawed installation
• File corruption affecting your MAILHOST file
• MAILHOST file integrity has been compromised by malware
• Device drivers of the hardware associated with your MAILHOST file are corrupt or out-of-date
• Your computer does not have the adequate system resources to open the MSN Mailhost Settings File format