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Both of these compilation constants are demonstrated in the following sections. There is also a compilation constant (Win64) that enables your Office 2010 solutions to work with both the 32-bit version and 64-bit version. Note that if your applications are only written for the 32-bit versions of Microsoft Office, no changes are necessary to your code. To improve compatibility of application code targeted to a particular version of Microsoft Office, there is a compilation constant (VBA7) that enables you to determine the version of VBA you are using and execute the correct code.

VBA 7.0 also enables you to create applications that are compatible with Office 2007 or continue to use VBA solutions created in previous versions. VBA 7.0 improves the performance of your Microsoft Office applications through 64-bit performance improvements. Office 2010 introduces a new version of Microsoft Visual Basic for Applications (VBA) known as VBA 7.0 that is updated to work with 64-bit client installations.

These differences and remedies are described in the article Compatibility Between the 32-bit and 64-bit Versions of Office 2010. To ensure compatibility, you must change the Declare statements in solutions to differentiate between 32-bit calls and 64-bit calls. To compensate for this, Microsoft Office provides a 32-bit version and 64-bit version of several of the Declare statements used in the Windows API. Also, calls to Microsoft Windows Application Programming Interface (API) functions from your application code may not work.Ĭalls to 64-bit Windows API functions from 32-bit solutions (and the opposite) may lead to erratic behavior or system crashes resulting from the truncation of data or overflows into protected memory spaces. For example, applications written for the 64-bit version likely do not work in previous versions of Microsoft Office. However, there are considerations when moving your 32-bit applications to or creating solutions for the 64-bit version of Microsoft Office. By using the 64-bit version, you can experience improved application performance by using more physical memory for storage and by moving more data in fewer operations. If you use a 64-bit version of Microsoft Windows, you can choose which version of Microsoft Office to use. Microsoft offers a 32-bit client installation and 64-bit client installation of Microsoft Office 2010. Working with the 32-bit Version and 64-bit Version of Office 2010 Office 2010 32-bit and 64-bit Client Installations

Summary: Learn to use Microsoft Visual Basic for Applications code in the 32-bit and 64-bit versions of Microsoft Office 2010.Īpplies to: Microsoft Office 2010 Provided by: Frank Rice, Microsoft Corporation It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.

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