microsoft.visualstudio.tools.applications.hosting.v9.0.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Discover Microsoft Visual Studio Tools for Applications Hosting v9.0 DLL—essential for application deployment and management. 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	07.02.2014 07:40:47
File version	9.0.30729.7079
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	✅ Have signed	File have signature, it is original file.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	149.9 kb.	153536 bytes.

Hashes:

MD5: 5407ed386851928a55bdeb7343547e77 ✅
SHA-1: 7754cb78c8c6fd85c0c303a602fe93c6a3be2170
SHA-256: 364f386f97281ff3a80fbf5aa93207d35cdcf21d4a32fcf1a29c3861c8794671
SHA-512: fa3cc5c5723a4c4f7e355041162b3d55576c45f0f81076c2a14f9f92d996870a5a10cdf869773b76585d40bf5d0d52f15f4d6b8da718b4b22b4ea7132417880a

Digital file signature microsoft.visualstudio.tools.applications.hosting.v9.0.dll ✅

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

To fix the microsoft.visualstudio.tools.applications.hosting.v9.0.dll error without downloading files from the internet, you must repair the existing Visual Studio Tools for Applications (VSTA) runtime or the parent application (such as Microsoft SQL Server, Microsoft Office, or Visual Studio) using built-in Windows deployment tools.

Method 1: Repair the Installation via Windows Control Panel

Since this DLL is part of an official Microsoft framework, the safest approach is to let Windows rebuild the corrupted assembly cache.

1. Press Windows Key + R, type appwiz.cpl, and press Enter to open Programs and Features.
2. Locate your installation of Microsoft Visual Studio Tools for Applications (v9.0) or the application triggering the error (e.g., Microsoft SQL Server 2008 / 2012).
3. Right-click the application and select Change or Repair.
4. Choose the Repair option in the wizard and follow the prompts to restore the missing .dll files from local recovery payloads.

Method 2: Use the Local Redistributable Installer

If you have a SQL Server or Visual Studio installer package already stored on your drive, you can extract or run the VSTA component directly.

1. Navigate to your local installation media or cache folder (e.g., C:\SQLServer2008 Install\).
2. Search for a folder named redist or VSTA.
3. Locate the file named VSTA RT30.msi or similar installer variant for the v9.0 runtime.
4. Double-click the file and select Repair to reinstall the hosting libraries.

Method 3: Run the System File Checker & DISM

If the DLL file was removed due to system file corruption or an incomplete Windows Update, native system tools can recover it.

1. Open the Start menu, type cmd, right-click Command Prompt, and select Run as administrator.
2. Execute the deployment image recovery tool by typing:

   DISM.exe /Online /Cleanup-image /Restorehealth

3. Once finished, run the file integrity scanner by typing:

   sfc /scannow

4. Restart your computer after the verification process finishes.

If you are still experiencing the issue, let me know:

• Which program triggers this error when you open it?
• The exact error message text or code displayed on your screen.

---

📊 Diagnostics Tool: Verify Your microsoft.visualstudio.tools.applications.hosting.v9.0.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:
mscoree.dll

Similar files:
️microsoftedge_x64_150.0.4078.65_150.0.4078.48.exe | ️microsoft.uev.office2013customactions.dll | ️microsoft.applicationid.rulewizard.dll | ️microsoft.applicationid.rulewizard.ni.dll | ️microsoft.visualstudio.tools.applications.hosting.v10.0.dll | ️microsoft.visualstudio.tools.applications.adapter.v9.0.dll | ️microsoft.office.tools.outlook.v9.0.dll | ️microsoft.windows.applicationserver.applications.dll.mui | ️microsoft.ecapp.exe | ️microsoft.uev.appagent.dll.mui | ️microsoftaccountcloudap.dll | ️microsoft.uev.configwrapper.dll | ️policy.1.0.microsoft.interop.security.azroles.dll | ️policy.1.2.microsoft.interop.security.azroles.dll | ️policy.1.0.microsoft.powershell.security.dll
Microsoft Corporation