Notes about the SEARCH-MS file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The SEARCH-MS file type is primarily associated with 'Windows Vista' by Microsoft Corporation. XML-based information to save information about a search in Windows Vista. It was introduced in Windows Vista around build 3000. These appear in Explorer as search folders even though they are really files. While you can open these files in an editor like Notepad BE CAREFUL. If, for example, you select Open With and have the Always Use checkbox checked then the files will become just that; files and will no longer display as folders in an Explorer window.