2902avp.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Discover details about 2902avp.dll, its function, and how to resolve related errors. Essential guide for IT professionals. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	32-bit (x86)	Compatible with 32 and 64-bit Windows
Creation date	09.07.2004 17:06:56
File version	5.4.0.2904
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	52 kb.	53248 bytes.

Hashes:

MD5: 75933586afd94ea24c5acd3dbc89a272 ✅
SHA-1: 970fd4b49d1368330c10279798991b901a233c2a
SHA-256: 406f473429573e9f0084aae125ef8f19f59291aa4c33cf7d40e7d996995a3238
SHA-512: c096f0f11fb306c6a84886826306fe9c2862c3c79b14a8991a174224b41c2a68b76e5be506494d23d354384c715c5d82a1cacffff9644de9d6b93e9478087a1d

✅ This file is compatible with 32-bit Windows and can run on ✅ 64-bit Windows (via the WOW64 subsystem).

To fix the 2902 avp.dll error without downloading external files, you must restore the quarantined library from your security software or repair the parent Kaspersky/Windows installation. This error occurs when your Windows Installer (Error 2902) cannot interact with the required Kaspersky Antivirus component (avp.dll) because it has been corrupted, modified, or quarantined as a false positive.

1. Restore avp.dll from Your Antivirus Quarantine

Most software blocks avp.dll during updates or third-party installations by mistake.

Open your Antivirus program (e.g., Kaspersky or Windows Defender).
Go to the Protection / Security tab and select Quarantine (or Detection History).
Look for avp.dll or any object flagged near the time of the error.
Select the file and click Restore (add to exclusions if prompted).

2. Perform a Built-In Application Repair

You can force the software to rebuild its native components using your original local Windows setup files.

Press the Windows Key + R, type control and press Enter to open the Control Panel.
Click on Uninstall a program under the Programs header.
Select your Kaspersky application (or the affected application triggering the MSI error).
Click Change or Repair at the top bar.
Select the Repair option inside the wizard and follow the prompts to restore the missing .dll.

3. Run Windows System File Checker (SFC)

If avp.dll or its critical installation dependencies are missing from your system files, Windows can repair them using its local cached system image.

Click the Start Menu, type cmd, right-click on Command Prompt, and select Run as administrator.
Type the following command exactly as shown and press Enter:
```
sfc /scannow
```
Wait for the verification to reach 100%. If it finds corrupted files, Windows will automatically fix them using local backups.
Type the second cleanup command and press Enter:
```
DISM /Online /Cleanup-Image /RestoreHealth
```
Restart your computer once the processes complete.

4. Fix Registry Permissible Blocks

Error 2902 is natively an MSI (Windows Installer) execution block. Clearing conflicting deployment entries often forces the internal installer to locate the library correctly.

Press Windows Key + R, type regedit, and hit Enter.
Navigate to the following deployment registry path: HKEY CLASSES ROOT\Licenses\
Look for an active sub-folder key related to your installer package (e.g., BA32367F-28F8...).
Right-click the complex alphanumeric folder key, choose Delete, and close the Registry Editor.
Attempt to launch or reinstall your program.

If you are still experiencing the issue, let me know which specific program you are trying to install or launch, and which operating system version you are currently running so we can narrow down the precise root cause.

📊 Diagnostics Tool: Verify Your `2902avp.dll` File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Connected files:
KERNEL32.dll
├── mscoree.dll
├── msvcrt.dll
├── USER32.dll
└── ole32.dll