Download and Fix OFFCAT.ACS

Sometimes Windows system displays error messages regarding corrupted or missing OFFCAT.ACS files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent OFFCAT.ACS file can therefore effect in failed execution of the started process.

OFFCAT.ACS file Character Structured Storage (Microsoft Agent). The file was developed by Microsoft for use with Office software. Here you will find detailed information about the file and instructions how to proceed in the event of OFFCAT.ACS related errors on your device. You can also download OFFCAT.ACS file compatible with Windows XP devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows XP

File info

General information
File extension ACS
Type Video
Description Character Structured Storage (Microsoft Agent)
Program Office 2003
Software Office
Author Microsoft
Software version 2003
File size 2071708
Oldest file 2017-05-10
Latest file 2017-05-10

There are various types of errors related to OFFCAT.ACS file. OFFCAT.ACS file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to OFFCAT.ACS file. If you encounter one listed below (or similar), please consider the following suggestions.

  • OFFCAT.ACS is corrupted
  • OFFCAT.ACS cannot be located
  • Runtime Error - OFFCAT.ACS
  • OFFCAT.ACS file error
  • OFFCAT.ACS file cannot be loaded. Module was not found
  • cannot register OFFCAT.ACS file:
  • OFFCAT.ACS file could not be loaded
  • OFFCAT.ACS file doesn't exist



Application could not be started because OFFCAT.ACS file is missing. Reinstall the application to solve the problem.


Problems related to OFFCAT.ACS can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing OFFCAT.ACS file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

OFFCAT.ACS file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with OFFCAT.ACS file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to OFFCAT.ACS file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of OFFCAT.ACS or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to OFFCAT.ACS file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the OFFCAT.ACS file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the OFFCAT.ACS file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the OFFCAT.ACS file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace OFFCAT.ACS file

The last solution is to manually download and replace OFFCAT.ACS file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded OFFCAT.ACS file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of OFFCAT.ACS file example directory paths.

  • Windows XP: C:\Program Files\Microsoft Office\OFFICE11\

If the steps did not solve your OFFCAT.ACS file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

System Windows XP
File size 2071708 bytes
Date 2017-05-10
File details
MD5 2ac60f2949fe44a97457942fc74a9291
SHA1 fba6b36082b379998bfbfa0af9e1f9f746f452fe
SHA256 ee578e00ee2ed8f64f0efbafd83cc80a9ac715ce5c1f08db52d5f693f8288322
CRC32 946d0832
Example file location C:\Program Files\Microsoft Office\OFFICE11\