File Extension Search

.sed File Extension

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

what is a .sed file?

Files with the .sed extension are files created using the IExpress Wizard. SED files are known as IExpress Self Extraction Directive Files and they are useful when it comes to building software installation packages using the IExpress wizard, since this built-in application is what is .sed to create Windows installers. This built-in application makes the setup program creation simple. The creation of self extracting files .sed to run these setup programs is possible with this application and SED files play a big part in this process. SED files are known to contain all the files needed to build software installation package such as the filename, popup messages, etc. and these are all important files that play a big part in the installation process. SED files are also important in the creation of software distributions. The IExpress wizard creating SED files can be found in the C:\Windows\System32\directory. SED files can be accessed using the Microsoft IExpress Wizard.

how to open a .sed file?

Launch a .sed 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 .sed 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 .sed files aren't yet associated with it. In this case, when you try to open a .sed file, you can tell Windows which application is the correct one for that file. From then on, opening a  .sed file will open the correct application. Click here to fix .sed file association errors

applications that open a .sed file

Microsoft IExpress Wizard

Microsoft IExpress Wizard

Microsoft IExpress Wizard from Microsoft is a tool that is provided in the Internet Explorer Administration Kit (IEAK) that is used to create a self-extracting DPInst installation package. The IExpress technology simplifies the creation of a set-up program by using IExpress Wizard. Using the Wizard and command-line options that come with Windows Vista simplifies the creation of a set-up program, including the creation of self-extracting files that automatically run the set-up program. Creation of the self-extracting DPInst installation package requires the availability of the DPInst executable file (DPInst.exe) and the driver package files. The DPInst descriptor file is required only if customization is desired in how DPInst install driver packages. Another optional file in the installation is the command-line script file. If the driver package INF files are configured to locate source files in directories other than the directory that contains the INF files, the command-line script file will be needed in the installation.

a word of warning

Be careful not to rename the extension on .sed 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.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .sed. 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.

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