: Your external 32‑bit VBA environment is trying to handle a 64‑bit integer (the AutoCAD ObjectID ), which is not possible.
Uses 4-byte memory pointers, limiting the application to 2GB or 4GB of RAM.
Visual Basic for Applications (VBA) remains a powerful automation tool for AutoCAD users, allowing for the customization of workflows and the integration of AutoCAD with other applications like Microsoft Excel or Word. While Autodesk shifted focus towards .NET and ObjectARX, many legacy routines and user-developed tools still rely on VBA.
When your VBA code calls functions from external Dynamic Link Libraries (DLLs) via Declare statements, you must modify the syntax. 64-bit environments require the PtrSafe keyword to instruct the compiler that the function is safe to run in a 64-bit process.
Type VBALOAD to test the file dialog interface for importing your legacy .dvb macro files. Resolving Common 64-Bit VBA Compatibility Errors
Open the VBAIDE , go to Tools > References , and check for any missing libraries. You may need to update 32-bit references to 64-bit equivalents. 4. VBA Projects Loaded but Nothing Happens Ensure the VBA security settings allow macros to run.
Once complete, restart AutoCAD 2015 to initialize the VBA environment. 4. Verifying the Installation To ensure the VBA module was installed correctly: Open AutoCAD 2015. Type VBAIDE in the command line and press Enter. The Visual Basic Editor window should open.
Once installed, the VBA environment brings back familiar tools:
#If VBA7 Then ' Code executes in AutoCAD 2015 and newer 64-bit/32-bit environments Private Declare PtrSafe Function GetFrequency Lib "kernel32" (lpFrequency As Currency) As Long #Else ' Code executes in legacy 32-bit environments (AutoCAD 2009 and older) Private Declare Function GetFrequency Lib "kernel32" (lpFrequency As Currency) As Long #End If Use code with caution. Key Migration Audits
This error means AutoCAD cannot locate the VBA runtime engine.
for faster performance in 64-bit.
Despite careful migration, you may encounter issues. Here are the most frequently reported problems and their solutions.
While installing the 64-bit VBA module provides an immediate fix for running legacy AutoCAD 2015 tools, relying heavily on VBA is a significant technical debt risk. Autodesk has officially deprecated VBA, meaning it is no longer actively developed, optimized, or natively protected against modern system exploits.
Note: For maximum stability in 2026, transitioning to AutoCAD .NET (VB.NET or C#) is generally recommended, as VBA is considered legacy technology.
: Close all programs, run the downloaded .exe , and follow the on-screen prompts to extract and install the module.
: Your external 32‑bit VBA environment is trying to handle a 64‑bit integer (the AutoCAD ObjectID ), which is not possible.
Uses 4-byte memory pointers, limiting the application to 2GB or 4GB of RAM.
Visual Basic for Applications (VBA) remains a powerful automation tool for AutoCAD users, allowing for the customization of workflows and the integration of AutoCAD with other applications like Microsoft Excel or Word. While Autodesk shifted focus towards .NET and ObjectARX, many legacy routines and user-developed tools still rely on VBA.
When your VBA code calls functions from external Dynamic Link Libraries (DLLs) via Declare statements, you must modify the syntax. 64-bit environments require the PtrSafe keyword to instruct the compiler that the function is safe to run in a 64-bit process. autocad 2015 vba module 64-bit
Type VBALOAD to test the file dialog interface for importing your legacy .dvb macro files. Resolving Common 64-Bit VBA Compatibility Errors
Open the VBAIDE , go to Tools > References , and check for any missing libraries. You may need to update 32-bit references to 64-bit equivalents. 4. VBA Projects Loaded but Nothing Happens Ensure the VBA security settings allow macros to run.
Once complete, restart AutoCAD 2015 to initialize the VBA environment. 4. Verifying the Installation To ensure the VBA module was installed correctly: Open AutoCAD 2015. Type VBAIDE in the command line and press Enter. The Visual Basic Editor window should open. : Your external 32‑bit VBA environment is trying
Once installed, the VBA environment brings back familiar tools:
#If VBA7 Then ' Code executes in AutoCAD 2015 and newer 64-bit/32-bit environments Private Declare PtrSafe Function GetFrequency Lib "kernel32" (lpFrequency As Currency) As Long #Else ' Code executes in legacy 32-bit environments (AutoCAD 2009 and older) Private Declare Function GetFrequency Lib "kernel32" (lpFrequency As Currency) As Long #End If Use code with caution. Key Migration Audits
This error means AutoCAD cannot locate the VBA runtime engine. While Autodesk shifted focus towards
for faster performance in 64-bit.
Despite careful migration, you may encounter issues. Here are the most frequently reported problems and their solutions.
While installing the 64-bit VBA module provides an immediate fix for running legacy AutoCAD 2015 tools, relying heavily on VBA is a significant technical debt risk. Autodesk has officially deprecated VBA, meaning it is no longer actively developed, optimized, or natively protected against modern system exploits.
Note: For maximum stability in 2026, transitioning to AutoCAD .NET (VB.NET or C#) is generally recommended, as VBA is considered legacy technology.
: Close all programs, run the downloaded .exe , and follow the on-screen prompts to extract and install the module.
