The errors you may see
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This application failed to start because ssscc.dll was not found.
The program can’t start because ssscc.dll is missing from your computer.
Error loading ssscc.dll. The specified module could not be found.
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The file ssscc.dll is missing or corrupted.
Visual Studio may instead report:
There was a failure while initializing the Microsoft Visual SourceSafe source control provider. You cannot use this provider to perform source control operations.
The 60-second answer
ssscc.dll is the Microsoft SourceSafe SCC Provider, a 32-bit source-control plug-in supplied by Microsoft Visual SourceSafe. It is not a Windows system DLL, Visual C++ runtime, DirectX component, or .NET file.
The safest fix is to repair or reinstall the licensed Visual SourceSafe client that originally supplied it. The file normally belongs in SourceSafe’s WIN32 directory, for example:
C:Program FilesMicrosoft Visual StudioVSSwin32ssscc.dll
C:Program FilesMicrosoft Visual SourceSafewin32ssscc.dll
Do not download a random copy, place it in C:WindowsSystem32, or run regsvr32 as a first step. If you no longer use SourceSafe, disable its provider in Visual Studio instead of restoring an obsolete component solely to remove the error.
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What causes an ssscc.dll error
The cause is usually one of these:
| Cause | What it means | Correct response |
|---|---|---|
| Damaged SourceSafe installation | The provider was deleted, quarantined, or never installed completely | Repair or reinstall SourceSafe |
| Incorrect registration | Visual Studio points to an old drive or folder | Repair SourceSafe or correct the known-good path |
| Removed but still enabled integration | Visual Studio still requests SourceSafe | Select another provider or None |
| 32-bit and 64-bit mismatch | The legacy provider is being used by an incompatible host or registry view | Use the matching 32-bit SourceSafe setup |
| Missing dependency | ssscc.dll exists, but another library it needs cannot load |
Reinstall the complete client and check compatibility |
| Windows corruption | Broader Windows components are damaged | Use DISM and SFC, but do not expect them to recreate SourceSafe |
A message saying “the specified module could not be found” does not always mean ssscc.dll itself is absent. Windows can show that message when a dependency of the DLL cannot be loaded.
1. Confirm whether SourceSafe is still needed
Before repairing an old source-control client, determine whether the application still needs it.
Check the Visual Studio provider
- Open Visual Studio.
- Select Tools.
- Select Options.
- Expand Source Control.
- Select Plug-in Selection.
- Check the provider shown in Current source control plug-in.
If the project still uses SourceSafe, leave the provider selected and continue with the repair steps below.
If the project has moved to another source-control system, select the current provider. If no source-control provider is required, select None, then select OK.
A project can also retain old SourceSafe bindings after the provider has been removed. In that situation, remove or update the project’s source-control bindings according to your team’s migration procedure. Keep a backup of the project before changing its bindings.
How to tell whether this solved it
Close and reopen Visual Studio, then open the affected solution. If the initialization message no longer appears and source-control commands work through the selected provider, the problem was stale SourceSafe integration rather than a missing Windows file.
If Visual Studio still requests SourceSafe, continue with the installation and registry checks.
2. Repair or reinstall Microsoft Visual SourceSafe
This is the most reliable fix when SourceSafe is still required.
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Use the original licensed installation media or an installer approved by your organization. Microsoft Visual SourceSafe is a legacy product, and Visual SourceSafe 2005 reached the end of extended support on July 11, 2017. Microsoft does not provide a current supported standalone ssscc.dll download.
Repair from the installer
The exact labels vary by release, but the process is generally:
- Sign in with an administrator account.
- Close Visual Studio and every SCC-compatible development tool.
- Locate the original Visual SourceSafe installer.
- Run the installer.
- If Windows displays a permission prompt, select Yes.
- Choose Repair, Modify, or the equivalent maintenance option.
- Ensure the client or
WIN32provider component is selected. - Complete the installation.
- Restart Windows.
- Open Visual Studio and check Tools > Options > Source Control > Plug-in Selection.
The repair should restore the provider and its SourceSafe-specific registry entries. It is safer than copying one DLL because the provider depends on its installation structure and registration.
Reinstall when repair is unavailable
If the installer has no repair option:
- Back up any SourceSafe configuration and confirm that you have the organization’s approved installation media.
- Open Settings > Apps > Installed apps on Windows 11, or Settings > Apps > Apps & features on Windows 10.
- Find the Visual SourceSafe client.
- Select the menu beside it and choose Uninstall, if your organization permits removal.
- Restart Windows if requested.
- Run the approved SourceSafe installer as administrator.
- Install the client and its source-control provider.
- Restart Windows again.
- Recheck the Visual Studio provider selection.
Do not remove the client if it contains repositories or configuration that has not been backed up. The client installation and the SourceSafe database are separate concerns, but an old workstation may contain important connection settings.
How to tell whether the repair worked
Check whether a file with this name now exists in the SourceSafe installation’s WIN32 directory:
ssscc.dll
Then open Visual Studio and load the affected project. A successful repair normally removes the provider initialization error and allows the SourceSafe commands to load.
If the file is present but Visual Studio still fails, check the registered path.
3. Check the registered SourceSafe path
Visual Studio does not normally find this provider by searching Windows system folders. It uses Source Control Plug-in registration.
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Microsoft documents values including:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftSourceSafe
HKEY_LOCAL_MACHINESOFTWARESourceCodeControlProvider
Relevant values can include:
SCCServerName
SCCServerPath
ProviderRegKey
InstalledSCCProviders
The SCCServerPath value should contain the complete path to the real provider DLL, not a relative path.
Inspect the path
- Press Windows key + R.
- Type:
regedit
- Press Enter.
- Approve the administrator prompt.
- Browse to:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftSourceSafe
- Look for
SCCServerPath. - Compare its value with the actual location of
ssscc.dll.
You can also use Registry Editor’s Edit > Find command to search for SCCServerPath and ssscc.dll.
The registry path should point to a real, trusted file in the SourceSafe installation directory. A path referring to an old drive letter, removed user profile, temporary folder, or another computer is invalid.
Before changing anything
Select the relevant registry key and choose File > Export to create a backup. Registry changes affect the whole computer, so do not replace a path merely because it looks unusual.
If the file is known-good and the installation directory is clearly correct, an administrator can correct the stale path. In most cases, however, repairing or reinstalling SourceSafe is preferable because it restores all related provider values consistently.
After making a change, close Visual Studio completely and reopen it. If the provider still fails, the 32-bit registry view or another dependency may be involved.
4. Account for 32-bit SourceSafe on 64-bit Windows
A 64-bit edition of Windows does not mean that every installed program must use 64-bit components. Historical SourceSafe clients and their SCC provider are 32-bit components.
That creates two common problems:
- A 32-bit provider is being loaded by an incompatible host.
- The path exists in one registry view but not the registry view used by the 32-bit application.
Do not search for or substitute a 64-bit ssscc.dll. The correct solution is the matching 32-bit SourceSafe client and a compatible 32-bit host configuration.
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- Open Settings.
- Select System.
- Select About.
- Look at System type.
On 64-bit Windows, repair SourceSafe with the organization’s approved legacy client installer. Do not copy files between System32 and SysWOW64. Despite their names, these directories are managed Windows locations with architecture-specific behavior, and manually placing a third-party provider there can create conflicts.
If the application itself is an old 32-bit development tool, use its documented 32-bit configuration. If a current 64-bit IDE cannot load the legacy provider, the issue may be host compatibility rather than a missing file.
5. Do not copy ssscc.dll into System32 or SysWOW64
Copying the file into either of these folders is not a proper repair:
C:WindowsSystem32
C:WindowsSysWOW64
ssscc.dll belongs to the SourceSafe WIN32 directory. Visual Studio identifies SCC providers through SourceSafe and source-control registry entries, not by treating the DLL as a general Windows library.
A system-folder copy can:
- Leave the original SourceSafe installation damaged
- Cause Visual Studio to use the wrong build
- Create architecture or dependency conflicts
- Make future repairs and malware investigations harder
- Fail to correct the
SCCServerPathvalue
Copying a file from another computer is also risky unless it comes from the same trusted, licensed SourceSafe release and matches the installation’s language and build. Reinstalling the complete client is safer.
6. Do not use regsvr32 unless the installer specifically requires it
regsvr32 is intended for DLLs that provide a registration entry point such as DllRegisterServer. SourceSafe providers are discovered through SCC-specific registration and the Source Control Plug-in API.
Running this command is therefore not a general fix:
regsvr32 ssscc.dll
It may produce an entry-point error, or it may complete without repairing the SourceSafe registry path. Either result can leave the original problem unchanged.
Only use regsvr32 if the official installer documentation for your exact SourceSafe build explicitly requires it. Otherwise, let the SourceSafe installer create the provider registration.
7. Check antivirus quarantine
Security software may quarantine an old provider because legacy binaries can have unusual age, signing, or behavior characteristics. Do not immediately disable antivirus protection or download a replacement.
Review the quarantine record
- Open Windows Security.
- Select Virus & threat protection.
- Select Protection history.
- Look for an event involving
ssscc.dll. - Open the event details.
- Confirm the detected file path and the application that installed it.
If the file came from the organization’s legitimate SourceSafe installation, ask your administrator to validate the detection before restoring it. If it is restored, repair the SourceSafe installation afterward and run another scan.
If the file was found in a download folder, temporary directory, or an unexpected application folder, do not restore it merely because its name matches. Remove the untrusted copy and obtain SourceSafe from approved installation media.
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8. Investigate a missing dependency or incompatible host
If ssscc.dll exists in the correct WIN32 directory, the error may concern a dependency rather than the named file.
This is especially likely when the message says:
Error loading ssscc.dll. The specified module could not be found.
Use these checks:
- Confirm the file path recorded by
SCCServerPath. - Right-click the DLL, select Properties, and review its location and available signature information.
- Confirm that your account can read and execute files in the SourceSafe directory.
- Start the application from its normal installation rather than from a copied project folder.
- Repair the complete SourceSafe client instead of replacing only the DLL.
- Check whether the host application is a compatible 32-bit legacy tool.
- Review the application’s own logs or Windows Event Viewer for a more specific dependency name.
Do not install unrelated Visual C++, DirectX, or .NET packages simply because the error contains “DLL.” Those runtimes are not first-line fixes for this SourceSafe provider. Add a runtime only when the application’s official documentation identifies it as a required dependency.
9. Update or reinstall related drivers only when evidence points there
A graphics, storage, or chipset driver is not the normal source of an ssscc.dll provider error. Consider a driver only if the entire development application is unstable, Windows reports device errors, or the application’s documentation identifies a driver dependency.
Check Device Manager
- Right-click Start.
- Select Device Manager.
- Expand the device category relevant to the wider failure.
- Right-click the affected device.
- Select Properties.
- Open the Driver tab.
- Note the provider and driver status.
- Select Update Driver and then Search automatically for drivers, or install a validated driver from the hardware manufacturer.
- Restart Windows.
If the problem began immediately after a driver change, use Roll Back Driver on the same tab when available. Do not uninstall functioning hardware drivers merely to address a SourceSafe registration problem.
Manually checking every device and matching old hardware packages can take considerable time, especially when the DLL error is unrelated. Outbyte Driver Updater can scan for outdated drivers and show what needs attention; its full-version driver installation is optional, and reinstalling SourceSafe remains the definitive fix for this provider.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.10. Use DISM and SFC only for wider Windows corruption
ssscc.dll is not a Windows system component, so System File Checker normally will not restore it. Use these commands when you also have damaged Windows features, unexplained system-file errors, failed updates, or other signs of operating-system corruption.
Microsoft recommends running DISM before SFC.
- Open Start.
- Type
Terminal. - Right-click Windows Terminal.
- Select Run as administrator.
- Select Yes at the permission prompt.
- Run:
DISM.exe /Online /Cleanup-Image /RestoreHealth
- Wait for it to finish.
- Then run:
sfc /scannow
- Restart Windows.
- Test Visual Studio again.
DISM repairs the Windows component store, while SFC checks protected Windows files. Neither command should be expected to recreate a missing SourceSafe installation or repair its SCC registry entries.
Repeating SFC and DISM without knowing what changed can make troubleshooting slow and inconclusive. Outbyte PC Repair can provide a scan showing system issues before any repair; its full-version repair is optional, and the complete SourceSafe installer is still the correct fix for a missing provider.
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11. Remove SourceSafe if it is obsolete
SourceSafe is no longer a supported modern source-control choice. If your team has migrated away from it, removing the integration is safer than keeping a broken legacy provider enabled.
- In Visual Studio, open Tools > Options.
- Expand Source Control.
- Select Plug-in Selection.
- Choose the current source-control provider or None.
- Select OK.
- Close and reopen Visual Studio.
- Open the affected solution.
- Remove old SourceSafe bindings only after confirming that the project is safely migrated and backed up.
- Uninstall Visual SourceSafe from Settings > Apps if no remaining application requires it.
If another SCC-compatible tool still uses SourceSafe, do not uninstall the client until that dependency has been checked.
FAQ
Is ssscc.dll part of Windows?
No. It is the Microsoft SourceSafe SCC Provider and belongs to Microsoft Visual SourceSafe. It is not a normal Windows 10 or Windows 11 system file.
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Is ssscc.dll part of Visual Studio?
Visual Studio can load it as a source-control plug-in, but the provider is supplied by Visual SourceSafe. It is not present in every Visual Studio installation.
Where should ssscc.dll be located?
Usually in the SourceSafe client’s WIN32 directory. The exact directory depends on the SourceSafe release and installation choices. The authoritative path for Visual Studio is the fully qualified SCCServerPath registry value.
Should I download ssscc.dll separately?
No. An arbitrary DLL download can contain malware, the wrong historical build, the wrong architecture, or a file that does not match the rest of the installation. Use the original licensed SourceSafe media or an organization-approved installer.
Will placing it in System32 fix the error?
No. That is the wrong location and does not repair SourceSafe’s SCC registration. It can also create version and architecture conflicts.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsWhy does regsvr32 fail on ssscc.dll?
The provider may not expose the COM registration entry point that regsvr32 expects. SourceSafe uses SCC-specific registry values, so repair the product installation instead.
What if the file exists but Visual Studio still cannot initialize it?
Check SCCServerPath, the related SourceCodeControlProvider values, file permissions, antivirus quarantine, 32-bit registry redirection, and host compatibility. A missing dependency can also produce the same message.
Will SFC or DISM restore the file?
Normally not. They repair Windows components, while ssscc.dll belongs to Visual SourceSafe. Use them only when there is evidence of broader Windows corruption.
Do I need a 64-bit version?
Not necessarily. Historical SourceSafe clients and providers are 32-bit. On 64-bit Windows, install the correct 32-bit client and use a compatible host rather than substituting a random 64-bit DLL.
What is the best fix if I no longer use SourceSafe?
Select another provider or None in Visual Studio, remove obsolete project bindings where appropriate, and uninstall the old SourceSafe client after confirming that no remaining tool depends on it.
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