| Error Text | Likely Cause | |------------|---------------| | Cannot start Visual Basic. The vb6tmpltlb file could not be found. Reinstall. | Missing or unregistered TLB. | | Class is not licensed for use. (Error 731) | Corruption in the template library licensing interface. | | Unexpected error occurred in the template type library. | Version mismatch (e.g., trying to use a VB5 template library with VB6). | | Failed to load 'vb6tmpltlb': The specified module could not be found. | PATH or Registry entry broken. | Because VB6 is no longer supported by Microsoft, fixing vb6tmpltlb errors often requires manual intervention. Here is a step-by-step guide. Step 1: Locate the File Open Command Prompt and run:
It is typically registered in the Windows Registry under: vb6tmpltlb
dir /s C:\vb6tmpltlb* If missing, search your installation media or backup. Unlike a DLL, you cannot use regsvr32 on a .tlb file (that is for COM servers). Instead, use the regtlib tool (older Windows) or regtlibv12.exe (VB6 IDE tool). | Error Text | Likely Cause | |------------|---------------|
regtlibv12.exe vb6tmpltlb You can use the .NET System.Runtime.InteropServices to register: | Missing or unregistered TLB