DLL

itircl55.dll

Download and install itircl55.dll to fix missing or corrupted DLL errors.

(19 Files Available)
Last Updated
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Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® Infotech Technology Library
Description
Microsoft® InfoTech IR Local DLL
Architecture
x86-64 (64 bit) x86 (32 bit)
Metadata Consensus
14/19 Files 73.7%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Frequently Asked Questions

What is itircl55.dll?

Metadata analysis shows itircl55.dll is a Dynamic Link Library (DLL) developed by Microsoft Corporation for Microsoft® Infotech Technology Library and is described as “Microsoft® InfoTech IR Local DLL” .

DLL files (Dynamic Link Libraries) are shared core modules used by Windows programs to run efficiently without duplicating code. Most errors occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application, repairing Windows, or replacing the DLL resolves the issue.

How do I fix missing DLL errors?
1

Software Fix

Fully uninstall and reinstall the program causing the error. If you are not sure what program is broken, look at the available file metadata above for hints. If a clean reinstall fails, download and install the DLL file manually.

2

Windows System Fix

Make sure Windows is fully updated. To repair system files automatically, right-click the Start menu, open PowerShell (Admin), and run these two commands in order:

Step A DISM /Online /Cleanup-Image /RestoreHealth
Step B sfc /scannow
How do I install DLL files?
1

Download & Extract

Download the file, right-click the folder, and extract all files to your computer.

2

Install the .DLL

Move the extracted DLL file into the root folder of the software that is giving you the error (where its .exe file is located), or place it in the system directory below:

32-bit → C:\Windows\SysWOW64
64-bit → C:\Windows\System32
3

Restart the Program

Close and reopen the program or game so Windows can look for and load the new DLL file.

How do I register DLL files?

Most DLL files do not need registration. However, if your file is a COM component and requires explicit system registration, follow these steps:

1

Open Terminal

Right-click the Start menu and open PowerShell (Admin) or Command Prompt (Admin).

2

Run Command

Type the command below for your file type and press Enter. You can drag and drop the DLL file directly into the terminal window to fill its path automatically.

64-bit regsvr32 "C:\path\to\filename.dll"
32-bit C:\Windows\SysWOW64\regsvr32 "C:\path\to\filename.dll"

Latest Releases

itircl55.dll
by Microsoft Corporation
for Microsoft® Infotech Technology Library
Microsoft® InfoTech IR Local DLL
Version: 16.0.19426.20218 Verified
Product Version: 16.0.19426.20218
Language: U.S. English (1033)
Uploaded: Jan 1, 2026   Size: 1.8MB
SHA256: 2bbb2790c483b6b05325184ef2d93470f5fcb07bed3297dfc965f3148b2d6788
SHA1: 2fa619eb9fdc74b851cde6f1ea2686f673ed3003
MD5: 356c86bfaf732b4fc5b6d219b8b276af
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
itircl55.dll
by Microsoft Corporation
for Microsoft® Infotech Technology Library
Microsoft® InfoTech IR Local DLL
Version: 16.0.19127.20064 Verified
Product Version: 16.0.19127.20064
Language: U.S. English (1033)
Uploaded: Nov 24, 2025   Size: 1.7MB
SHA256: ee3ee68bcf8deccec3f2ae03931df21b5509fa50edcd69ed83e9c890e7ea9a8d
SHA1: 58bad6af05b3ea9efed564a13497bff647b73c52
MD5: 59b3df073a2e7e99f6f3ec1ad0705bad
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
itircl55.dll
by Microsoft Corporation
for Microsoft ® Infotech Technology Library
Microsoft® InfoTech IR Local DLL
Version: 5.70.51021.0 Verified
Product Version: 5.70.51021.0
Language: U.S. English (1033)
Uploaded: Oct 13, 2025   Size: 1.7MB
SHA256: 7804a26e4e6e682fdf642c18a3dd7bd05aea429868f0c200b061cb62afdb0729
SHA1: 8eee9b85789becb184ff6576ccc1113152cf5da1
MD5: f92f9c6dafe390da792c63d84b927672
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
itircl55.dll
by Microsoft Corporation
for Microsoft® Infotech Technology Library
Microsoft® InfoTech IR Local DLL
Version: 16.0.18227.20002 Verified
Product Version: 16.0.18227.20002
Language: U.S. English (1033)
Uploaded: Dec 27, 2024   Size: 1.8MB
SHA256: 09dfc118517ba8371ba027b6c037c6c585c7814db0e76bab02eb7e916682b460
SHA1: 6b0286d86576d47c95385a4786f3251a679554af
MD5: c541c758885142c7c52b8323f10e26b5
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
itircl55.dll
by Microsoft Corporation
for Microsoft® Infotech Technology Library
Microsoft® InfoTech IR Local DLL
Version: 16.0.17425.20008 Verified
Product Version: 16.0.17425.20008
Language: U.S. English (1033)
Uploaded: Aug 5, 2024   Size: 1.8MB
SHA256: 66551ed8bbbb990286bcd8a72ca019ddf7d0909dc6a725532e8af6c18c5fd02b
SHA1: 2f2a1e7bd678ea02c758158550ddcc9ad554dbfa
MD5: 8df12d59bd149d67fbd4f73c8ad701bf
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD