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32-bit vs 64-bit systems

Will all 32 - bit applications work on a 64 - bit windows 7 Operating System?

joe
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2 Answers2

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Windows 7 (64-bit) has 32-bit emulation layer and all applications that work in Windows 7 (32-bit) will work with 64-bit version also.

However, 32-bit drivers will not work.

Josip Medved
  • 8,909
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Most will - some which make specific API calls may not (such as Anti Virus, Firewall, drivers or other "high level" software).

William Hilsum
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