You're here because you have a file that has a file extension ending in .update. Files with the file extension .update can only be launched by certain applications. It's possible that .update files are data files rather than documents or media, which means they're not meant to be viewed at all.

An ISAPI update file is integrated with source code compilation standards used for including recently updated Dynamic Link Libraries (DLLs) in the content stored in a ISAPI update file intended for a Microsoft IIS Web server. These ISAPI update files are also implemented with data encoding specifications used for saving the data of an ISAPI update file in the UPDATE format. Appended with the .update extension, an ISAPI update file is used by the ISAPI Loader application, which was developed by EggCentric as a program integrated with a set of functionalities that can enable currently running applications to be "hot-swapped" in a Microsoft IIS Web server. The updated Dynamic Link Libraries stored in an ISAPI update file are used to update the Microsoft IIS Web server, and these DLLs are automatically detected and initialized by the ISAPI Loader program. The extension of a DLL in an ISAPI update file is required to be changed to the RUN file extension before the ISAPI Loader application can use the ISAPI update file to update the Microsoft IIS Web server.

Launch a .update file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .update file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .update files aren't yet associated with it. In this case, when you try to open a .update file, you can tell Windows which application is the correct one for that file. From then on, opening a  .update file will open the correct application. Click here to fix .update file association errors

Be careful not to rename the extension on .update files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

A file extension is the set of three or four characters at the end of a filename; in this case, .update. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.