Tip & How-To about Microsoft Windows XP Professional

File Searching in XP

Windows XP typically does not allow your system to search for file types that Windows does not recognise.

For most users this really doesn't pose a problem as they will rarely, if ever, need to search for unusual file types. If you are a software developer, however, you may find that your code routinely uses files that have an extension that Windows simply doesn't recognise.

This is easily rectified by adjusting the following registry key, using regedit set:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex\FilterFilesWithUnknownExtensions] = 1

Note: Using the registry improperly can impare the use of your PC, so it is advisable to make an export of your registry before making any changes.

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