Microsoft Office OCX VSFLEX3.OCX

VSFLEX3.OCX - Download, Register, and Fix ActiveX Errors

Last Updated: 02/16/2026
[Average Article Time to Read: 4.7 minutes]

OCX files such as VSFLEX3.OCX are categorized as Win32 DLL (Dynamic link library) files. As a vsFlex3 ActiveX Controls file, it was created for use in vsFlex3 by Microsoft.

The first release in the Windows XP Operating System for VSFLEX3.OCX was on 05/31/2001 inside Office XP. The most recent release for Office 2003 launched on 08/19/2003 [version 3.00.036 release].

In this article, you will find detailed VSFLEX3.OCX information, a OCX file troubleshooting guide, and a list of versions that are available for free download.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	VSFLEX3.OCX
File Extension:	OCX file extension
Description:	vsFlex3 ActiveX Controls
Object File Type:	Dynamic link library
File Operating System:	Win32
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	VideoSoft
Software Program:	vsFlex3
Legal Copyright:	Copyright © 1998, VideoSoft

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x1aa40
Code Size:	107520

View Other VSFLEX3.OCX Information

File Info	Description
File Size:	220 kB
File Modification Date/Time:	2017:05:10 20:58:39+00:00
File Inode Change Date/Time:	2017:11:05 07:01:43+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	1999:01:06 00:30:01+00:00
PE Type:	PE32
Linker Version:	5.2
Code Size:	107520
Initialized Data Size:	137728
Uninitialized Data Size:	0
Entry Point:	0x1aa40
OS Version:	4.0
Image Version:	0.0
Subsystem Version:	4.0
Subsystem:	Windows GUI
File Version Number:	3.0.0.36
Product Version Number:	3.0.0.36
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Win32
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	VideoSoft
File Description:	vsFlex3 ActiveX Controls
File Version:	3.00.036
Internal Name:	vsFlex
Legal Copyright:	Copyright © 1998, VideoSoft
Original Filename:	vsFlex3.ocx
Product Name:	vsFlex3
Product Version:	3.00.036
Legal Trademarks:

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are VSFLEX3.OCX Error Messages?

ActiveX-Related VSFLEX3.OCX Errors

VSFLEX3.OCX is considered a type of COM file, or Component Object Model, most commonly known as an ActiveX control. ActiveX controls like VSFLEX3.OCX are used by Office and other software to display media-related content. Therefore, your will most likely encounter a VSFLEX3.OCX error when attempting to load an audio or video clip, or view some variety of embedded website content. Some of the most common VSFLEX3.OCX ActiveX errors include:

VSFLEX3.OCX could not be found.
VSFLEX3.OCX could not be loaded.
VSFLEX3.OCX failed to load. The specified module could not be found.
VSFLEX3.OCX failed to register. The specified module could not be found.
Cannot find VSFLEX3.OCX.
Component 'VSFLEX3.OCX' or one of its dependencies not correctly registered: a file is missing or invalid.
Missing or broken reference to the file VSFLEX3.OCX.
One or more ActiveX controls could not be displayed because either: 1) Your current security settings prohibit running ActiveX controls on this page, or 2) You have blocked a publisher of one of the controls. As a result, the page may not display correctly.
Runtime Error 339: VSFLEX3.OCX not correctly registered.
The file VSFLEX3.OCX is missing or corrupt.
The Module 'VSFLEX3.OCX' Failed to load. Make sure the binary is stored at the specified path or debug it to check for problems with the binary or dependent .DLL files. The specified module could not be found.
This program requires VSFLEX3.OCX, which is no longer included.

These OCX errors are most commonly due a missing or corrupt OCX. If your file is missing or corrupt, this could be caused by improper computer shutdown, or a malware infection, both of which could corrupt (or even delete) VSFLEX3.OCX. If your VSFLEX3.OCX is corrupted or missing, and therefore cannot be properly loaded by Office, this will result in an error message.

Finally, another common cause of VSFLEX3.OCX ActiveX errors can be contributed to an ActiveX-related subkey missing from the Windows registry. Broken DLL (Dynamic Link Library) references in the Windows registry can prevent VSFLEX3.OCX from registering properly, resulting in an ActiveX error. These broken references (registry keys) are usually triggered by a moved or missing file, or as a result of a leftover DLL file reference after a shared program has been uninstalled.

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How to Fix VSFLEX3.OCX Errors in 4 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your VSFLEX3.OCX issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Use Microsoft Register Server (regsvr) to Manually Register Your VSFLEX3.OCX File

When you install Office, or another software that uses the VSFLEX3.OCX dependency, the software should register the file automatically. Sometimes your OCX file won't get registered properly and will trigger a "VSFLEX3.OCX not registered" error. Thankfully, Microsoft included a handy built-in utility called "Microsoft Register Server" (regsvr32.exe) to enable you to manually re-register your VSFLEX3.OCX file.

How to re-register VSFLEX3.OCX from an elevated command prompt (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "command" (do not presss ENTER yet)
While holding CTRL-Shift, hit ENTER.
You will be prompted with a permission dialog box.
Click Yes.
Type this command: regsvr32 /u VSFLEX3.OCX
Hit ENTER. This process will UN-register your file, allowing you to RE-register it.
Type this command: regsvr32 /i VSFLEX3.OCX
Hit ENTER. This process will RE-register your file.
Close the command prompt window.
Re-start Office.

regsvr32 /u VSFLEX3.OCX

Step 2: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
When you see the search box, type "System Restore" and press "ENTER".
In the search results, find and click System Restore.
Please enter the administrator password (if applicable / prompted).
Follow the steps in the System Restore Wizard to choose a relevant restore point.
Restore your computer to that backup image.

If the Step 1 fails to resolve the VSFLEX3.OCX error, please proceed to the Step 2 below.

Step 3: If recently installed Office (or related software), uninstall then try reinstalling Office software.

You can uninstall Office software by following these instructions (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "Uninstall" and press "ENTER".
In the search results, find and click "Add or Remove Programs"
Find the entry for Office 2003 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Office software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Office 2003

Microsoft Corporation

Step 4: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many VSFLEX3.OCX error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

Hit the Windows Start button
In the search box, type "Update" and press "ENTER".
In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
If updates are available for download, click "Install Updates".
After the update is completed, restart your PC.

If Windows Update failed to resolve the VSFLEX3.OCX error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your VSFLEX3.OCX File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate VSFLEX3.OCX file version. We maintain a comprehensive database of 100% malware-free VSFLEX3.OCX files for every applicable version of Office. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download VSFLEX3.OCX Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Office folder location:

Windows XP: C:\Windows\System32\
Windows XP: C:\Windows\System32\
Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows XP.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve VSFLEX3.OCX problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download VSFLEX3.OCX Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying VSFLEX3.OCX to your appropriate Windows system directory. Microsoft typically does not release Office OCX files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing VSFLEX3.OCX and all other OCX files for Office. An incorrectly installed OCX file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Office XP

File Name

Software Version

File Version

Architecture

VSFLEX3.OCX

3.0.0.36

3.00.036

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows XP
Software:	vsFlex3
Software Version:	3.0.0.36
File Version:	3.00.036
File Size:	225280
File Date:	05/10/2017
MD5 Checksum:	c758ebc719c0d07b1b0e251c77f11bfd
SHA1 Checksum:	639b70c2df2621ede939851fea0097ad6da75e7f
SHA256 Checksum:	6c60602a971bb245f17dcac5bdd9aa35fe56ef680a7a758f0ef5e52300da04fa
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	137728
Linker Version:	5.2
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	4.0
File Modification Date/Time:	05/10/2017

Office 2003

File Name

Software Version

File Version

Architecture

VSFLEX3.OCX

3.0.0.36

3.00.036

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows XP
Software:	vsFlex3
Software Version:	3.0.0.36
File Version:	3.00.036
File Size:	225280
File Date:	05/10/2017
MD5 Checksum:	c758ebc719c0d07b1b0e251c77f11bfd
SHA1 Checksum:	639b70c2df2621ede939851fea0097ad6da75e7f
SHA256 Checksum:	6c60602a971bb245f17dcac5bdd9aa35fe56ef680a7a758f0ef5e52300da04fa
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	137728
Linker Version:	5.2
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	4.0
File Modification Date/Time:	05/10/2017

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Files Related to VSFLEX3.OCX

OCX Files Related to VSFLEX3.OCX

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
HTMLMM.OCX	HTML Multimedia OLE Controls	Microsoft Word Internet OLE Controls (9.0)	110592	C:\$WINDOWS.~BT\Sources\
MSIOFF10.OCX	Microsoft System Information Office Extension	Microsoft System Information Office Extension (10.00.1509)	425984	C:\Users\Tester\AppData\Local\Microsoft\Windows...
MSPVWCTL.OCX	Microsoft® Office Document Imaging Viewer OCX	Microsoft Office Document Imaging (1.03.2349.1)	217360	C:\Users\Tester\AppData\Local\Microsoft\Windows...
OINFO11.OCX	Microsoft System Information Office Extension	Microsoft Office 2003 (11.0.5510)	733240	C:\Windows\System32\
HTMLMM.OCX	HTML Multimedia OLE Controls	Microsoft Word Internet OLE Controls (9.0)	110592	C:\$WINDOWS.~BT\Sources\

Other Files Related to VSFLEX3.OCX

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows 10	5957	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8	6201	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 8.1	7548	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 8	15591	C:\Windows\L2Schemas\
l2057.mllr	CMU Sphinx MLLR Data	Windows 7	249	C:\Windows\Speech\Engines\SR\en-GB\

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