These single-file runtimes are available for downloading:
| Alpha | FreeBSD | (no Tk) | 776k | gzip |
| | Linux | | 2051k | gzip |
| | NetBSD | | 1571k | gzip |
| | OpenBSD | | 1741k | gzip |
| | Tru64 | | 2258k | gzip |
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| AMD Hammer | Linux | | 1918k | gzip |
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| ARM | Linux | | 1765k | gzip |
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| HP PA-RISC | HP-UX 11 | | 1343k | gzip |
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| IBM S390 64 | Linux | | 1934k | gzip |
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| IBM S390 | Linux | | 1862k | gzip |
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| Intel ia64 | Linux | | 2340k | gzip |
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| Intel x86 | BSD/OS | | 935k | gzip |
| | FreeBSD | | 1416k | gzip |
| | Linux | | 1441k | gzip |
| | NetBSD | | 1412k | gzip |
| | OpenBSD | | 1541k | gzip |
| | SunOS | | 1016k | gzip |
| | Windows | | 1015k | gzip | 900k | upx-exe |
| | Windows | (no Tk) | 507k | gzip | 444k | upx-exe |
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| MIPS | IRIX | | 1436k | gzip |
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| Motorola 68K | Macintosh | | 954k | gzip |
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| PowerPC 64 | Linux | | 1968k | gzip |
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| PowerPC | AIX | | 1526k | gzip |
| | Linux | | 1916k | gzip |
| | Macintosh | | 1017k | gzip |
| | MacOS X | | 932k | gzip |
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| PPC + 68K | Macintosh | | 1723k | gzip |
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| SPARC | Linux | | 1534k | gzip |
| | SunOS | | 1000k | gzip |
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