smime3.dll - 分析和如何纠正错误

★★★★☆ 已验证的文件 (27.08.2026)

️ ️ ️ ️ ️ ️ ️ Important Notice: Solve Windows security certificate issues with smime3.dll - Essential for secure email communication. 手动更换系统库可能会阻碍未来的Windows更新或导致关键系统故障.

建筑:	32位 (x86)	与32位和64位Windows兼容
创建日期	08.10.2025 22:43:54
文件版本	3.39.0.0
防病毒扫描	✅ 清洁	没有检测到病毒.
数字签名	没有签名	没有签名,文件可能被修改了.
哈希完整性	✅MD5:已验证	文件哈希保护缺失.
文件大小	这里有99.5KB的数据.	这里有101888个字节.

哈希号:

MD5: bf5d364ff0bd061fd6a3fab2a46695cc ✅
SHA-1: 4ca79afd5b7de17e7e9bdca84503e0ea03d01e00
SHA-256: 8425ffa89a9bc4a523e28492063298d9f0e5cb11181f7e5b65d6d05676e32a22
SHA-512: f7b3d2d2566aea71170b5b3e3f324bf96d6dbf1e9bd8d1e9ef341ae8028517ced2ec76c008dba4a6a0ce5fcfaa8783877e1b032be79d056e412504804a10626a

✅ 这个文件与32位Windows兼容,可以在64位Windows上运行 (通过WOW64子系统).

为了修复一个 smime3.dll error without downloading anything, you need to repair the corrupted application, restore the file from your system, or re-register the DLL via Command Prompt. smime3.dll is an essential component of the NSS S/MIME Library used by software like Mozilla Firefox and Thunderbird. Follow these steps to resolve the issue safely using built-in Windows tools.

?? Method 1: Re-Register the DLL File

If the file exists on your PC but is not recognized by the operating system, you can manually re-register it.

按下 Start menu 和类型 cmd.
按下右键 Command Prompt 选择一个. Run as administrator.
输入下面的命令并按下 Enter: regsvr32 smime3.dll
重新启动您的计算机并测试应用程序.

??? Method 2: Repair or Reinstall the Affected Software

If the error occurs when opening a specific app (e.g., Firefox), the app can fix itself using its original local files.

For Windows Apps: 打开 Settings 没有. Apps 没有. Installed apps. Find the program, click the three dots, select Advanced options 然后点击 Repair.
For Desktop Software: Open the Control Panel, click Uninstall a program, select the application, and choose Repair 或是 Change 如果可以.

?? Method 3: Run the System File Checker (SFC)

Windows has an integrated scanner that searches for missing or corrupted system files and automatically replaces them with healthy cached copies.

打开 Command Prompt as an administrator.
它们的类型 sfc /scannow 然后按下. Enter.
等到验证达到100%.
Restart your computer if the tool repaired any files.

??? Method 4: Check the Recycle Bin

Sometimes, DLL errors occur because the file was accidentally deleted during a manual cleanup or by a software uninstaller.

打开你的 Recycle Bin 在桌面上.
寻找 smime3.dll 在右上方的搜索中.
如果找到,右键单击文件并选择 Restore.

? Method 5: Use Windows System Restore

If the error started happening recently after a system modification, you can roll Windows back to a point when everything worked.

它们的类型 Create a restore point 在Windows的搜索中点击它.
按下 System Restore... 按一下一个按.
Select a date prior to when the smime3.dll error first appeared.
Follow the on-screen prompts to complete the process.

If you would like to narrow down the solution, please tell me which specific application triggers this error and what exact error message you see on your screen.

诊断工具:验证您的 `smime3.dll` 文件

您担心您的PC上的文件被恶意软件修改了吗? 放入下面的表格. 我们的脚本将验证其文件大小,加密哈希 (MD5/SHA-1),并检查有效的微软数字签名.

连接的文件:
nss3.dll
├── nssutil3.dll
├── plc4.dll
├── plds4.dll
├── nspr4.dll
├── MSVCR90.dll
└── KERNEL32.dll
其他版本:
️ smime3.dll 3.73.1.0 64-bit (x64)