system.data.sqlite.dll Won’t Load: Repair the App Safely

system.data.sqlite.dll is a third-party .NET assembly used by applications that embed SQLite databases. If Windows says it is missing or cannot load it, repair or reinstall the program that owns the file before attempting wider Windows repairs.

Do not download an isolated copy from a random DLL website or copy it into C:\Windows\System32. The filename can belong to different System.Data.SQLite builds, with different .NET targets, native companions, versions, and CPU architectures. A replacement that looks correct can still be incompatible, unsafe, or unable to fix the missing dependency behind the error.

As an Amazon Associate I earn from qualifying purchases.

What system.data.sqlite.dll actually is

System.Data.SQLite.dll belongs to the System.Data.SQLite ADO.NET provider. It allows a Windows .NET application to communicate with SQLite database files.

It is not:

• sqlite3.dll
• SQLite.Interop.dll
• e_sqlite3.dll
• Microsoft.Data.Sqlite.dll

Those names refer to different libraries or providers. An application may require more than one of them.

The same System.Data.SQLite.dll filename does not identify one universal binary. Depending on the application and release, it can be:

• A managed .NET provider assembly.
• A legacy mixed-mode assembly containing managed and native code.
• A private file stored beside a game or desktop application.
• A NuGet-delivered assembly copied into a developer’s build output.
• Part of an older 1.x deployment using SQLite.Interop.dll.
• Part of a newer 2.x deployment using e_sqlite3.dll.

The file is application software, not a Windows component. Windows does not maintain one universal copy for every program, and it is not normally supplied as a protected operating-system file in C:\Windows\System32 or C:\Windows\SysWOW64.

Read the error before choosing a fix

You may see an error such as:

Could not load a file or assembly "System.Data.SQLite.dll" or one of its dependencies.
The specified module could not be found.

This does not prove that System.Data.SQLite.dll itself is absent. The named assembly may be present while one of its native dependencies is missing, blocked, corrupted, or built for the wrong architecture.

Other messages point toward different causes:

Could not load file or assembly 'System.Data.SQLite, Version=1.0.115.5,
Culture=neutral, PublicKeyToken=db937bc2d44ff139' or one of its dependencies.

This usually calls for the exact assembly version expected by the application.

Unable to load DLL 'SQLite.Interop.dll': The specified module could not be found.

This points toward a legacy native companion or one of its dependencies rather than necessarily the managed assembly.

An attempt was made to load a program with an incorrect format.

This commonly means that x86 and x64 components do not match, although an incompatible managed runtime can produce a similar result.

A Windows loader message may also mention a bad image and show status 0xc000007b. That status corresponds to an invalid image format, commonly caused by incompatible binaries.

Fix 1: Repair or reinstall the program that reports the error

Time needed: 5 to 20 minutes.

For an ordinary user, this is the most likely successful fix. The program’s installer or launcher knows which System.Data.SQLite version, native library, .NET target, and architecture belong together.

Repair a Microsoft Store or packaged application

1. Open Start.
2. Select Settings.
3. Choose Apps.
4. Select Installed apps.
5. Find the affected program.
6. Select its three-dot menu.
7. Choose Advanced options.
8. Select Repair.
9. Start the program again.

The Repair option attempts to restore the application without removing its data. If it does not help, return to the same screen and use Reset only after confirming that the application’s local settings or saved data are backed up.

Repair a traditional desktop application

1. Press Windows key + R.
2. Type:

appwiz.cpl

1. Press Enter.
2. Find the affected application in Programs and Features.
3. Right-click it.
4. Choose Repair, Change, or Modify, depending on the installer.
5. Follow the installer prompts.
6. Restart Windows if the installer requests it.
7. Launch the application again.

If no repair option exists, uninstall only the affected application, restart Windows, and reinstall it from the original vendor installer or the launcher that delivered it. Do not delete personal saves or configuration folders unless the vendor’s instructions specifically require that step.

Verify a game’s installed files

For a Steam game:

1. Open Steam.
2. Select Library.
3. Right-click the affected game.
4. Choose Properties.
5. Select Installed Files.
6. Choose Verify integrity of game files.
7. Wait for Steam to replace missing or damaged files.
8. Start the game again.

Other launchers provide similar repair or verification commands, but the menu names vary. Use the launcher associated with the game rather than downloading a loose DLL.

How to tell whether this worked

The repair succeeded if the application starts normally and no longer reports System.Data.SQLite.dll, SQLite.Interop.dll, e_sqlite3.dll, or a related assembly error.

If the same error returns immediately, continue with the dependency and architecture checks below. Reinstalling the same damaged package repeatedly is unlikely to help unless you first check antivirus quarantine, the required .NET version, or the application’s process architecture.

Fix 2: Check whether antivirus removed the file

Time needed: 3 to 10 minutes.

Antivirus software can quarantine an application file after an update or a false positive. This is possible, but do not assume it is the cause without checking the security history.

1. Open Start.
2. Type Windows Security.
3. Open Windows Security.
4. Select Virus & threat protection.
5. Select Protection history.
6. Review recent detections.
7. Open an entry that mentions the affected application or its installation directory.
8. Check the file path and detection details.

Only restore or allow the file if all of the following are true:

• The file came from the legitimate application installer.
• The path belongs to the expected application directory.
• You recognize the application.
• The application was installed from its vendor or official launcher.
• A fresh reinstall from the trusted source produces the same detection or confirms the file’s identity.

Microsoft Defender may provide Restore and then Allow on device for a quarantined file. Do not restore an unknown DLL merely because its filename resembles the expected one. If the file is repeatedly quarantined, reinstall the application from its official source and contact the application vendor if the detection continues.

After restoring a verified file, repair or verify the application again. A quarantined native companion may be the real reason the managed assembly cannot load.

Fix 3: Identify the native dependency and CPU architecture

Time needed: 10 to 25 minutes.

The process architecture matters more than the architecture of Windows.

A 32-bit application running on 64-bit Windows still needs x86 native components. A 64-bit application needs x64 components. Installing x64 files merely because Windows is 64-bit does not solve an x86 application failure.

Understand the two main System.Data.SQLite layouts

Older System.Data.SQLite 1.x applications commonly use:

Application.exe
System.Data.SQLite.dll
x86\SQLite.Interop.dll
x64\SQLite.Interop.dll

The application selects the native folder matching its process architecture.

Newer System.Data.SQLite 2.x deployments removed SQLite.Interop.dll and use a separate SQLite shared library with the base name e_sqlite3. On Windows, that normally means:

e_sqlite3.dll

Do not copy the 1.x native file into a 2.x application or replace a 1.x deployment with a current 2.x package. They are not drop-in replacements.

Check the application executable

1. Open File Explorer.
2. Browse to the application’s installation folder.
3. Right-click the main .exe file.
4. Select Properties.
5. Open the Details tab.
6. Note the product and file information if available.

The Details tab does not always show the architecture. If the application has its own launcher, updater, or separate game executable, the process that actually fails may not be the first .exe you inspect.

Check the running process

If the application opens briefly or reaches a menu:

1. Start the application.
2. Press Ctrl + Shift + Esc to open Task Manager.
3. Select Details.
4. Locate the application process.
5. Right-click the column headings.
6. Choose Select columns.
7. Enable Platform if your Windows version provides it.
8. Check whether the process is 32-bit or 64-bit.

On some Windows versions, a 32-bit process is marked with text such as (32 bit) or (32-bit).

Check the installed files

Open the application folder and look for:

System.Data.SQLite.dll

Then look for one of these arrangements:

x86\SQLite.Interop.dll
x64\SQLite.Interop.dll

or:

e_sqlite3.dll

A visible System.Data.SQLite.dll does not prove that its companion is present. Also check whether the application is using a subfolder, a runtime-specific folder, or a launcher directory different from the folder you opened.

How to tell whether architecture is the problem

Architecture is a strong suspect when:

• The error says “incorrect format.”
• The application was recently replaced with a different build.
• Only one of the x86 or x64 native folders exists.
• The application is 32-bit but only x64 native files are present.
• The application is 64-bit but only x86 native files are present.
• The application uses Any CPU and runs as 64-bit on 64-bit Windows while its native deployment contains only x86 files.

The safe fix is to repair or reinstall the application package that matches the process architecture. Do not manually rename or swap native DLLs.

Fix 4: Install or repair the .NET version the application requires

Time needed: 10 to 30 minutes.

Because System.Data.SQLite.dll is a .NET assembly, an application can fail when the required .NET Framework or .NET runtime is missing or damaged. This is more likely when the error explicitly mentions the CLR, .NET Framework, a runtime version, or an assembly binding failure.

It is not safe to assume that the newest runtime is always correct. Older desktop programs may target .NET Framework versions from 2.0 through 4.x. Current System.Data.SQLite 2.x packages support modern targets such as .NET Framework 4.7.1 and .NET Standard versions, but the application’s own target remains authoritative.

Enable .NET Framework 3.5

Some older applications require .NET Framework 3.5, which includes older .NET Framework 2.0 and 3.0 components.

1. Open Start.
2. Type Windows Features.
3. Select Turn Windows features on or off.
4. Enable .NET Framework 3.5 (includes .NET 2.0 and 3.0).
5. Select OK.
6. Allow Windows to download or enable the required files.
7. Restart Windows if prompted.
8. Test the application.

If Windows cannot obtain the feature files, use the application installer or a matching Windows installation source rather than downloading an unrelated DLL.

Repair or install .NET Framework 4.8

For a classic desktop application that requires .NET Framework 4.x:

1. Open Microsoft’s .NET Framework 4.8 Runtime page.
2. Download the runtime installer.
3. Close running applications.
4. Run the installer.
5. Restart Windows.
6. Test the affected application.

Do not install .NET Framework as a substitute for restoring the application’s own System.Data.SQLite.dll. The framework supplies the runtime environment, not the third-party provider assembly.

Use the Microsoft .NET Framework Repair Tool

Use the Microsoft .NET Framework Repair Tool when several .NET Framework applications fail or the error clearly implicates the framework.

1. Download the tool from Microsoft.
2. Close applications.
3. Run it as an administrator if requested.
4. Accept the license terms.
5. Allow it to apply the recommended repairs.
6. Restart Windows.
7. Test the original application.

If only one application reports the problem and other .NET applications work normally, repair that application first. A framework repair cannot recreate an application-local database provider file.

Install a modern .NET runtime only when the application needs it

If the error names modern .NET rather than .NET Framework:

1. Open Microsoft’s .NET download page.
2. Check the application vendor’s requirements.
3. Install the specified runtime family and architecture.
4. Restart the application.
5. Test again.

Do not install every runtime listed on the page. Match the program’s documented target and process architecture.

Fix 5: Restore the correct Visual C++ runtime

Time needed: 10 to 20 minutes.

Some legacy System.Data.SQLite packages depend on the Microsoft Visual C++ runtime. The managed assembly can be present while Windows fails to load SQLite.Interop.dll because a Visual C++ runtime component is missing.

1. Check the application’s documentation or installer requirements.
2. Determine whether the failing process is x86 or x64.
3. Open Microsoft’s Visual C++ Redistributable downloads.
4. Download the matching Microsoft redistributable.
5. Install it.
6. Restart Windows.
7. Repair or verify the affected application.
8. Test it again.

Microsoft provides direct packages for x86 and x64.

The architecture must match the application process, not merely Windows. A 32-bit application on 64-bit Windows generally needs the x86 runtime. A 64-bit application needs the x64 runtime.

Older application packages may require an older Visual C++ generation. Installing the latest redistributable does not guarantee compatibility with every old binary. If the program’s installer includes a specific runtime, use that installer or follow the vendor’s requirement.

Fix 6: Repair Windows components with DISM and SFC

Time needed: 15 to 45 minutes.

DISM and SFC repair Windows components. They do not normally restore a third-party System.Data.SQLite.dll stored in an application directory.

Use these commands when:

• Several unrelated applications show bad-image or missing-system-file errors.
• Windows components are behaving abnormally.
• The problem began after broader system corruption.
• A .NET repair or application reinstall did not resolve wider symptoms.

Run DISM first

1. Open Start.
2. Type Command Prompt.
3. Right-click Command Prompt.
4. Choose Run as administrator.
5. Select Yes at the User Account Control prompt.
6. Run:

DISM.exe /Online /Cleanup-image /Restorehealth

1. Wait for the operation to finish.
2. Restart Windows if requested.

DISM may take time and may appear to pause. Do not close the window while it is working.

Run SFC after DISM

Open an elevated Command Prompt again and run:

sfc /scannow

Wait until verification reaches 100 percent. Then restart Windows and test the application.

Interpret the result

SFC may report that:

• No integrity violations were found.
• Corrupted files were found and repaired.
• Corrupted files were found but some could not be repaired.

If Windows Update cannot provide the repair source, Microsoft documents a source-based form:

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource\Windows /LimitAccess

Replace C:\RepairSource\Windows with a matching Windows repair source. Do not use an arbitrary folder.

Repeatedly running SFC and DISM will not replace an application-owned SQLite provider. If the commands complete successfully but the same program still fails, return to application repair, native dependencies, and architecture.

When manually hunting through Windows component repairs becomes repetitive and you want a scan to show what needs attention, Outbyte PC Repair can identify system issues in its free scan; repairs are performed by the full version, and reinstalling the affected application remains the definitive fix when the missing file belongs to that program.

Fix 7: Check Windows Update

Time needed: 10 to 25 minutes.

Windows Update can repair framework components and broader operating-system problems, although it does not normally supply an application’s private System.Data.SQLite file.

1. Open Start.
2. Select Settings.
3. Choose Windows Update.
4. Select Check for updates.
5. Install available updates.
6. Restart Windows.
7. Return to Windows Update and check again.
8. Test the application.

This step is especially relevant when multiple applications fail or a .NET Framework component is damaged. It is lower priority than repairing the application when only one game or desktop program reports the error.

Fix 8: Update or reinstall drivers only when the affected program is hardware-related

Time needed: 15 to 40 minutes.

A graphics, chipset, storage, or peripheral driver is not a normal cause of a missing System.Data.SQLite assembly. Consider driver work only when:

• The affected program is a hardware-management utility.
• The error appeared immediately after a driver or utility update.
• The program’s own installer changed at the same time.
• Other hardware-related components began failing.

Use Device Manager

1. Right-click Start.
2. Select Device Manager.
3. Expand the category related to the affected program, such as Display adapters, Storage controllers, Universal Serial Bus controllers, or Human Interface Devices.
4. Right-click the relevant device.
5. Select Properties.
6. Open the Driver tab.
7. Note the driver provider, date, and version.
8. Select Update Driver.
9. Choose Search automatically for drivers.
10. Restart Windows if a driver is installed.

For a clean vendor reinstall:

1. Download the driver from the hardware manufacturer.
2. Use the installer’s clean-install option if provided.
3. Restart Windows.
4. Repair the affected application.
5. Test it again.

Do not remove a device driver just because System.Data.SQLite.dll is missing. Driver reinstallation is an escalation step for a hardware utility, not the standard DLL repair.

If checking every device manually is the difficult part, Outbyte Driver Updater can scan for driver issues; its free scan identifies candidates, while driver installation is handled by the full version, and it will not replace the application package that owns System.Data.SQLite.dll.

Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Fix 9: Use System Restore after a matching system change

Time needed: 20 to 45 minutes.

System Restore is appropriate when the problem began immediately after a Windows update, application installation, driver change, or similar system modification and a restore point exists.

1. Press Windows key + R.
2. Type:

rstrui.exe

1. Press Enter.
2. Choose Next.
3. Select a restore point created before the problem began.
4. Select Scan for affected programs if available.
5. Review the changes.
6. Select Next.
7. Select Finish.
8. Allow Windows to restart and complete the restoration.

System Restore normally rolls back system files, settings, registry state, and installed programs without removing personal files. It does not guarantee that an application’s private data or a quarantined DLL will be restored.

If the error affects only one application, reinstalling that application is usually more direct than rolling back Windows.

Why regsvr32 is usually the wrong command

Time needed: 1 minute to understand.

regsvr32 is designed for DLLs that implement registration routines such as DllRegisterServer. It is not a general-purpose DLL repair command.

System.Data.SQLite.dll is a .NET assembly. Legacy SQLite.Interop.dll and current e_sqlite3.dll are native libraries, but they are not fixed by blindly registering them with regsvr32.

Running commands such as these is not a valid repair:

regsvr32 System.Data.SQLite.dll

regsvr32 SQLite.Interop.dll

A resulting message about a missing entry point or an incompatible module does not repair the application. Restore the complete package through the application installer instead.

If the file is visible but the application still fails

Work through this checklist in order:

1. Copy the full path shown in the error.
2. Confirm that the visible file is in the application’s expected directory.
3. Check the assembly version named in the exception.
4. Look for SQLite.Interop.dll or e_sqlite3.dll.
5. Confirm that native files match the process architecture.
6. Check Windows Security Protection History.
7. Check whether a third-party antivirus removed a companion file.
8. Confirm that the application directory is accessible.
9. Check whether the program runs under a different account or service identity.
10. Check whether the application is loading another copy from a launcher or plug-in directory.
11. Repair or reinstall the exact application release.

Windows searches multiple locations for DLLs and resolves dependencies separately. A file that is visible in File Explorer is therefore not sufficient proof that the loader can use it.

Developer deployment notes

If you are maintaining the application rather than merely trying to start it, identify the package generation first.

A legacy 1.x project commonly references:

System.Data.SQLite.Core

Its deployment may require:

System.Data.SQLite.dll
x86\SQLite.Interop.dll
x64\SQLite.Interop.dll

A current 2.x project commonly references:

System.Data.SQLite

Its native deployment uses a separate SQLite shared library based on:

e_sqlite3.dll

Restore the package used by the project and verify that the native runtime file reaches the application output directory for every supported runtime identifier. Do not assume that copying only the managed assembly is enough.

The package version and assembly file version are not always identical. A file-version field in Explorer should not be treated as the sole authority. Identify the application release, package reference, target framework, and native deployment layout together.

A current NuGet package is primarily a developer dependency. Installing it globally is not a general repair for an end user whose application was built against an older release.

Common causes, in practical order

Likely cause	What is actually wrong	Correct repair
Incomplete or damaged installation	The application’s private copy was deleted, omitted, or corrupted	Repair, reinstall, or verify the application
Missing native companion	SQLite.Interop.dll or e_sqlite3.dll is absent or cannot load	Restore the complete matching package
x86/x64 mismatch	Native files do not match the process architecture	Install the application build with matching native files
Package-version mismatch	The program requests a different assembly release	Restore the exact application package version
Missing Visual C++ runtime	A legacy native component cannot resolve its runtime dependency	Install the required Microsoft redistributable architecture
.NET Framework or runtime problem	The required managed runtime is missing or damaged	Enable, install, or repair the required .NET version
Antivirus quarantine	A legitimate file or companion was removed	Verify the source, then restore or reinstall
Damaged Windows components	Broader Windows files are corrupted	Run DISM, then SFC
Recent system change	A compatible installation stopped working after a change	Consider System Restore

This is a troubleshooting order, not a claim that one cause occurs at a fixed rate.

Is system.data.sqlite.dll safe?

The filename alone cannot establish that a particular file is safe. A legitimate copy should normally be associated with a known application and stored in that application’s installation or deployment directory.

Be cautious when the file is:

• In an unexpected temporary or startup directory.
• Loaded by an unknown program.
• Repeatedly quarantined.
• Paired with an application you do not recognize.
• Offered as a standalone download with no connection to the owning program.

Do not whitelist an unknown file simply because its name is familiar. If malware is suspected, use Windows Security and your organization’s security procedures rather than replacing the file from an unverified source.

FAQ

Is system.data.sqlite.dll part of Windows?

No. It is a third-party .NET assembly used by applications that embed SQLite. The owning application normally deploys it locally.

Should I copy it into System32 or SysWOW64?

No. Application-local deployment is the normal design. Copying the file into a Windows system directory can create version conflicts and does not restore missing native dependencies.

Why does the error say “one of its dependencies” when the file exists?

The managed assembly may be present while SQLite.Interop.dll, e_sqlite3.dll, Visual C++ runtime files, or another dependency is missing or incompatible.

Is sqlite3.dll the same as system.data.sqlite.dll?

No. sqlite3.dll is a native SQLite library. System.Data.SQLite.dll is the .NET provider assembly. An application may require a particular native companion in addition to the managed provider.

Is SQLite.Interop.dll the same as e_sqlite3.dll?

No. SQLite.Interop.dll is associated with common legacy System.Data.SQLite 1.x deployments. System.Data.SQLite 2.x uses a separate SQLite shared library named e_sqlite3.dll on Windows.

Does 64-bit Windows require the x64 DLL?

Not necessarily. The application process determines the requirement. A 32-bit application on 64-bit Windows needs compatible x86 native components.

Should I install the newest System.Data.SQLite package?

Not as a general end-user repair. A program may require an older assembly version and a different native deployment model. Repair the application that produced the error.

Will installing .NET Framework fix the missing file?

It can repair a missing or damaged runtime, but it does not restore an application-owned System.Data.SQLite.dll. Repair the application separately.

Should I run regsvr32?

No. System.Data.SQLite.dll is a .NET assembly, and its native companions are not repaired by blindly registering them.

Should I run SFC and DISM?

Run them when several applications or Windows components show corruption. For one program with a missing third-party provider, repair or reinstall that program first.

Where should I download the DLL?

Do not download an isolated DLL from a random file repository. Use the affected application’s original installer, launcher verification, or an official package source used by the developer. Microsoft’s runtime and repair resources should be used for Windows and .NET components.

What information should I collect if the problem remains?

Record:

• The full error text.
• The affected application and its version.
• The full path named in the error.
• Whether the process is x86 or x64.
• Whether the folder contains SQLite.Interop.dll or e_sqlite3.dll.
• The required .NET Framework or .NET runtime.
• Recent antivirus detections.
• Whether the problem affects other applications.

That information lets the application vendor distinguish a missing private file from a missing dependency, architecture mismatch, package-version conflict, or broader Windows problem.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.