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Confused about all those X'es and numbers? Here's a brief explanation:
The Intel and AMD processors that have 16-bit and 32-bit instruction sets are called the X86 platform
because their processor architecture is compatible with a series of processors that were named
the 80386, 80486, 80586 (aka Pentium I). If you leave away the first three digits, you end up with X86.
x64 (which in programmer terms is called AMD64) refers to 64-bit processors, such as the Intel Xeon with EMT64 and AMD Athlon64 and Opteron series, which are fully 64-bit instruction set capable. All new processors are 64-bit, but to take advantage of that, your Operating System needs to support 64-bit. Currently, only two Windows Operating Systems support 64-bit: Windows XP x64 Edition and Windows Server 2003 x64 Edition.
The upcoming Windows Vista (formerly "Longhorn") will also be 64-bit.




		Current version: 1.3.18 SATWHERE supports both 32-bit and 64-bit Windows natively. If you're not sure which one you need, download the 32-bit version and SATWHERE will tell you if the 64-bit version can run. The 32-bit edition of SATWHERE runs on 64-bit Windows, but not the other way round. The same license key will work with both editions. Running 64-bit SATWHERE on a 64-bit System will give you a 30% performance increase. So if you see this message when starting up SATWHERE, be sure to upgrade for free to the 64-bit edition!

		Confused about all those X'es and numbers? Here's a brief explanation: The Intel and AMD processors that have 16-bit and 32-bit instruction sets are called the X86 platform because their processor architecture is compatible with a series of processors that were named the 80386, 80486, 80586 (aka Pentium I). If you leave away the first three digits, you end up with X86. x64 (which in programmer terms is called AMD64) refers to 64-bit processors, such as the Intel Xeon with EMT64 and AMD Athlon64 and Opteron series, which are fully 64-bit instruction set capable. All new processors are 64-bit, but to take advantage of that, your Operating System needs to support 64-bit. Currently, only two Windows Operating Systems support 64-bit: Windows XP x64 Edition and Windows Server 2003 x64 Edition. The upcoming Windows Vista (formerly "Longhorn") will also be 64-bit.