I’ve just spend an hour in gathering some additional information around Windows 7 Application Compatibility. Till now when we moved to a new operating system version a significant amount of effort was required with regard to application compatibility. So will companies that invested in Windows Vista Application compatibility have to do all that work again for Windows 7 ?
Unfortunately not, on almost any Microsoft source i found around Application Compatibility, the following statements are being made:
“The key is, if you are ready for Vista, you will be ready for Windows 7”
“if your application can run in Vista, it can run in Windows 7”
An updated version of the Application Compatibility Toolkit (ACT) for Windows 7 will be released in the coming months, but according to a comment of one of the Springboard Series participants, it would only have one additional check related to Windows 7.
Those who took a look at the Windows 7 internal version number might have noticed that this is 6.1. This is important for application compatibility as well, since many applications would check for the major operating system version number (as seen when moving from Windows XP version 5.1 to Windows Vista version 6.0.
So the conclusion is that those companies who want to accelerate their desktop migration from Windows XP to Windows 7, could actually start testing their applications against Windows Vista and / or the Windows 7 Beta version.
Be ready for Windows 7: Application Compatibility Jay Paloma, Deployment Technical Specialist from the Microsoft Singapore Office explaining Windows 7 application compatibility.