Kinds of MKS Files

Leading MKS Type

.MKS

Formatting:	.mks
Type:	Matroska Elementary Stream File

An MKS file is a subtitle container format which can only contain subtitles. The developer of the MKS file, Matroska, also develops the MKV file.

Developer:	Matroska
Class:	Data Files
Entry:	HKEY_CLASSES_ROOT\.mks

Software Programs That Open The Matroska Elementary Stream File:

The Core Media Player by Open Source

	Windows
	Windows Phone

Linux

	Symbian OS
	Palm OS

Other MKS Descriptions

.MKS

Formatting:	.mks
Type:	MagicKey SmartType Settings File

An MKS file contains settings associated with MagicKey, a program that functions as a form-filler, calculator, units converter, currency conversion calculator, etc.

Developer:	Advanced Computer Innovations, Inc.
Class:	Settings Files

Software Programs That Open MagicKey SmartType Settings File Files:

MagicKey by Advanced Computer Innovations, Inc.

Compatible with:

Windows

.MKS

Formatting:	.mks
Type:	MasterCook Cookbook File

An MKS file is a data file used by MasterCook and stores cookbook with recipes.

Developer:	ValuSoft
Class:	Data Files

Software Programs That Open MasterCook Cookbook File Files:

Mastercook Cookbook by Cosmi Finance LLC

Compatible with:

Windows

iOS

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MKS Troubleshooting

Common Problems Opening MKS Files

The Core Media Player Not Present

You encounter an error message such as "%%os%% Can't Open MKS Files" when trying to open your MKS. Usually, this is because you do not have The Core Media Player for %%os%% installed. The typical path of opening your MKS with a double-click won't work because %%os%% cannot make the program connection.

Tip: When you have another program installed that you know will open your MKS, you can select it from the other programs listed (see "Show Apps").

Wrong Version of The Core Media Player is Installed

It is possible that your version of The Core Media Player isn't able to open your Matroska Elementary Stream File file due to incompatibility. Visit the Open Source website to download (or purchase) the latest version of The Core Media Player. The primary cause of this problem is that your Matroska Elementary Stream File file was created by a different (newer) version of The Core Media Player than what's installed.

Tip: Sometimes you can get a clue about the version of MKS file you have by right clicking on the file, then clicking on "Properties" (Windows) or "Get Info" (Mac OSX).

Regardless, most of the MKS file opening problems relate to not having the right version of The Core Media Player installed.

More Causes of Problems Opening MKSs

Although you might already have The Core Media Player or another MKS-associated software installed on your computer, you can still encounter problems opening Matroska Elementary Stream File files. There can be external issues inside of %%os%% that are causing these errors when opening MKSs. These issues include:

• File references in the Windows Registry for MKS are wrong
• Deletion of the MKS file description from the Registry by mistake
• The Core Media Player or another MKS application experienced a flawed installation
• The MKS itself is corrupted
• MKS file integrity has been compromised by malware
• Hardware associated with MKS has outdated drivers
• Windows has inadequate resources to open your Matroska Elementary Stream File file