ISMV File Extension

ISMV file icon
IIS Smooth Streaming Video Format
  • Developer
  • Category
  • Popularity
    4.6 (5 votes)

What is ISMV file?

An .ISMV file is an encoded multi-media smooth streaming format supported for a Microsoft IIS Web Server. The .ISMV file is saved in the Protected Interoperable File Format (PIFF) that is derived from the MPEG-4 specification. The ISMV file is fragmented into smaller parts and these parts can be streamed at different transfer rates associated with different quality video level. As the Microsoft IIS Web Server can host multiple ISMV files, the smooth streaming technology enables dynamic detection of the bandwidth rate and facilitates streaming of the ISMV files that best fits the bandwidth rate. 

Programs which support ISMV file extension

The following listing features ISMV-compatible programs. Files with ISMV suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Programs that support ISMV file

How to open file with ISMV extension?

There can be multiple causes why you have problems with opening ISMV files on given system. What is important, all common issues related to files with ISMV extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Install Microsoft IIS software

Problems with opening and working with ISMV files are most probably having to do with no proper software compatible with ISMV files being present on your machine. The most obvious solution is to download and install Microsoft IIS or one to the listed programs: Microsoft Silverlight, Smooth Streaming. Above you will find a complete listing of programs that support ISMV files, classified according to system platforms for which they are available. If you want to download Microsoft IIS installer in the most secured manner, we suggest you visit Microsoft Corporation website and download from their official repositories.

Step 2. Verify the you have the latest version of Microsoft IIS

You still cannot access ISMV files although Microsoft IIS is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that Microsoft IIS cannot handle files with ISMV may be that the software is outdated. The most recent version of Microsoft IIS is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open ISMV files to Microsoft IIS

If you have the latest version of Microsoft IIS installed and the problem persists, select it as the default program to be used to manage ISMV on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

The procedure to change the default program in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the ISMV file
  • Select Choose another app → More apps
  • To finalize the process, select Look for another app on this PC entry and using the file explorer select the Microsoft IIS installation folder. Confirm by checking Always use this app to open ISMV files box and clicking OK button.

The procedure to change the default program in Mac OS

  • From the drop-down menu, accessed by clicking the file with ISMV extension, select Information
  • Find the Open with option – click the title if its hidden
  • Select the appropriate software and save your settings by clicking Change all
  • Finally, a This change will be applied to all files with ISMV extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the ISMV file is complete and free of errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper ISMV file. Problems with opening the file may arise due to various reasons.

1. Check the ISMV file for viruses or malware

If the ISMV is indeed infected, it is possible that the malware is blocking it from opening. Scan the ISMV file as well as your computer for malware or viruses. If the ISMV file is indeed infected follow the instructions below.

2. Verify that the ISMV file’s structure is intact

If you obtained the problematic ISMV file from a third party, ask them to supply you with another copy. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. When downloading the file with ISMV extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Ensure that you have appropriate access rights

Some files require elevated access rights to open them. Switch to an account that has required privileges and try opening the IIS Smooth Streaming Video Format file again.

4. Verify that your device fulfills the requirements to be able to open Microsoft IIS

If the system is under havy load, it may not be able to handle the program that you use to open files with ISMV extension. In this case close the other applications.

5. Check if you have the latest updates to the operating system and drivers

Latest versions of programs and drivers may help you solve problems with IIS Smooth Streaming Video Format files and ensure security of your device and operating system. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle ISMV files.

Do you want to help?

If you have additional information about the ISMV file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on ISMV file.

Top File Extensions
Show more
File Extension of the day
xlsx icon


Microsoft Excel Open XML Spreadsheet

Files with the .XLSX extension contain spreadsheets compressed in ZIP format, stored in an open format based on XML – Office Open XML. It was...