Issue
When launching SigmaX.exe, the following system error appears:
SigmaX.exe - System Error
The program can't start because MFC71U.DLL is missing from your computerProduct Line
Satchwell SigmaEnvironment
SigmaX
Cause
The Microsoft Foundation Class (MFC) libraries are typically installed by default on Windows systems. However, newer applications often rely on the .NET framework, and some versions of Windows 7 may not include all MFC libraries by default.
Resolution
- Option 1: Manually Copy DLL Files
If the error shown in Figure 1 appears, download the zipped file containing both MFC71.dll and MFC71U.dll.- Download System32_MFC7_Files.zip
- Extract and copy the DLL files to:
C:\Windows\System32
- Option 2: Install Microsoft Visual C++ 2005 Redistributable
Install the appropriate version of the Microsoft Visual C++ 2005 Redistributable Package, which includes the required DLLs.
Additional Notes
- Ensure you have administrative privileges when copying files to the System32 directory or installing redistributables.
- Restart your system after installation to ensure changes take effect.