Microsoft is phasing out VBScript from Windows, a decision announced in May 2024, affecting developers using Visual Basic for Applications (VBA). The deprecation will occur in three phases: the first phase, ongoing until at least 2026, classifies VBScript as a "Feature on Demand" (FOD), allowing existing VBA projects to function without disruption. The second phase, starting around 2027, will disable the default status of the VBScript FOD, leading to potential failures in unupdated applications. The final phase will involve the complete removal of VBScript from future Windows releases. This change will impact VBA projects that rely on VBScript for executing external scripts and using the VBScript type library for regular expressions. To address these issues, Microsoft has integrated RegExp classes into the VBA runtime library starting with Microsoft 365 Version 2508, allowing developers to use regular expressions natively without relying on vbscript.dll. Developers are encouraged to upgrade to the latest Office build and test their projects for dependencies on VBScript.