Vb6tmpltlb May 2026

As organizations migrate VB6 applications to .NET (VB.NET, C#, or PowerBuilder), vb6tmpltlb becomes a diagnostic marker.

Microsoft has maintained backward compatibility for VB6 runtime (MSVBVM60.dll) throughout Windows 10 and 11. However, the IDE (which requires vb6tmpltlb) is not supported. The official stance is: VB6 IDE is deprecated and unsupported on Windows 10 and later.

Nevertheless, thousands of companies still run the VB6 IDE on Windows 10/11 by: vb6tmpltlb

Will this work on Windows 12? It is uncertain. Microsoft is gradually phasing out 32-bit COM registration surfacing. The safest long-term strategy is to migrate VB6 projects to .NET (using tools like VB Migration Partner) or to encapsulate VB6 logic into a service layer, reducing dependency on the IDE and its template library.

If you are searching for this keyword, chances are you encountered an error. The most frequent errors include: As organizations migrate VB6 applications to

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).

Option A (if you have the VB6 CD/tools): Will this work on Windows 12

regtlibv12.exe vb6tmpltlb

Option B (Manual Registry using PowerShell): You can use the .NET System.Runtime.InteropServices to register:

$path = "C:\Program Files (x86)\Microsoft Visual Studio\VB98\vb6tmpltlb"
[System.Runtime.InteropServices.Marshal]::LoadTypeLibFromEx($path, $true)

Note: This requires elevated admin rights.

  • For missing or mismatched template TLBs:
  • When upgrading to .NET: