msoshext.dll — All Versions & Downloads
Verified
Metadata
AI Analysis
x86 (32 bit)
x86-64 (64 bit)
Download and install msoshext.dll to fix missing or corrupted DLL errors.
ADVERTISEMENT
Select a version or variant to download. In most cases, this will be the latest version (32/64-bit) from the appropriate company.
Showing 44/44 results.
Filtering results by
Company :
'Microsoft Corporation'
Remove
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.19426.20218
Verified
Product Version:
16.0.19426.20218
Language:
1033 (U.S. English)
Size: 1.7MB
SHA256: ad5d9a55f8bac0c5d8d3b53b564e01b311477c390564e86d9df25e145d4e3e58
SHA1: c5f773eaae900908c36b78196bdc59e90e73ba77
MD5: 6868849a6a33131f4638c9127f4df771
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.19426.20076
Verified
Product Version:
16.0.19426.20076
Language:
1033 (U.S. English)
Size: 1.3MB
SHA256: 147ac38e0bfecc65713265962108760023d5274be6e4135147a2ab9a7dcd4557
SHA1: 92538ee9dd93f521c4eabfcdcf8038f3c44dfc25
MD5: 9533cc3ec75caa13da0ba8f48fbcf8a5
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.19127.20192
Verified
Product Version:
16.0.19127.20192
Language:
1033 (U.S. English)
Size: 1.3MB
SHA256: a682709c0ae5a4194c994d97770c1c3e1d3c57b84a8fb9f32b4dd089c18933db
SHA1: 8d2217fdf40b8a8d7a36e3050bb3ae72bdc4ccf5
MD5: 399c0a88dd519b5f393c82b1fbf50f80
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.19127.20192
Verified
Product Version:
16.0.19127.20192
Language:
1033 (U.S. English)
Size: 1.6MB
SHA256: 31d6349f8767872f472f98b44bcfbed9cce518d216e08c6232afcc288dd8ab56
SHA1: bede2eeab1ed84b88772b21e02a39bdc8303d78c
MD5: bd2566084b03e714b608cadd60292b1f
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.18227.20002
Verified
Product Version:
16.0.18227.20002
Language:
1033 (U.S. English)
Size: 1.4MB
SHA256: 29145c1381e0c9cc9f4e8b50ea4b25aefca9ba4f87fa8520f07f956e59a5da61
SHA1: 1f4a21dbdd4d59192acc4a5cdbcc24d28fabefed
MD5: 37f726ff486ee8f54835c52bf5b73172
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.18227.20002
Verified
Product Version:
16.0.18227.20002
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 6387a8e5135880f60ded77fa59aed0288dec76a36989e02a391a6adb04661404
SHA1: 0a5c6a0fb6ec790ef44d43d64953056b0f64693c
MD5: f621ba469c916d493c986d7f105ec9e5
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.18129.20030
Verified
Product Version:
16.0.18129.20030
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 4085b576e179eb94251802cd12b2c84bd471edd0edba3727fe26c7b5b3135bf0
SHA1: 70521704f1db0f21070554b3b329f0a9f9b73d36
MD5: a35167d404bd0f129fc33de53afc2087
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.18129.20030
Verified
Product Version:
16.0.18129.20030
Language:
1033 (U.S. English)
Size: 1.4MB
SHA256: 67d3b13b610847eee13d4fb6afc648ec25bbf6722ab581aacca707656badb59c
SHA1: 139d2f8862492632fcdb2eea0c797e7ea0982f02
MD5: b4daa62233f7fbd3b2f7e99453097afa
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17830.20056
Verified
Product Version:
16.0.17830.20056
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 683c6c1f4b3dca8dd335e8a1c91d012ba3402b6bcb749f2ad90b222514ccfa6b
SHA1: cbe93e649db95c1a8fb2df55a19a968454a613f1
MD5: 4f745fe1bf2c115cb5352d7350a29685
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17830.20056
Verified
Product Version:
16.0.17830.20056
Language:
1033 (U.S. English)
Size: 1.4MB
SHA256: f1faed0571c15368093d7b23976fe416e317acdb3328afe9629ee69ccbb22d42
SHA1: 5ed85b2b1c501b0523ea1f9524adcd927fc1c7c3
MD5: e0d660762fab2819064306b48758b639
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17328.20004
Verified
Product Version:
16.0.17328.20004
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 292f0587e6908a5d0e3cf6e346ad601fe8c050f6e0d215564c81f2e1697c123c
SHA1: e1a3bc9895be6b5ef9563ab6a51717abee3fedb4
MD5: 18065f744d1e1550fedffa8dd0b3f5bd
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17328.20004
Verified
Product Version:
16.0.17328.20004
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: aa2a7e9e8ccabfb195119cad6d66942ce8506f5fc9c6cf96b35a66dbc275a25e
SHA1: bbfe70463f6eb6ada9ee28571630408a2a682287
MD5: 9b8e961378154a2bb2bda8fd5a3de91d
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17231.20036
Verified
Product Version:
16.0.17231.20036
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: dd912322f756c71df143e8750c91fe1e2085716c7c3bdda51a4b15c532843529
SHA1: cec6cac85db2a1acf83e307a28d05464ff2e4036
MD5: 4bbfa23fc3e2b11d9c66ad4da663af97
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17231.20036
Verified
Product Version:
16.0.17231.20036
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: 13547bbe996c0042294bc3bdc500ad285db1333d4ebc791584b5c8e9ad775369
SHA1: 0290a77b4ad761a4ccb8db7b15b481eb38ac0698
MD5: 6c829c8964d0b86d4b61c29bd2b1d848
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17126.20132
Verified
Product Version:
16.0.17126.20132
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: 894e07f4fa0936f843f803dd4ca6c9a0fc1aef379b8da27c5f3b7838e26cf28b
SHA1: 11bdb096db8fee7692f8919777e916857c3dc250
MD5: 47d3f2523223532bc70955def4c564f5
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.17126.20132
Verified
Product Version:
16.0.17126.20132
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 56ccccebe3ac1c54a8e56b4c1f56f79865c1aa55cdcf90aab2336bcaeb5ab475
SHA1: cb79b0046a96da2b8173cfdc47dd33a29cfcad1e
MD5: cf4f52e088deda9b28768fecc650d186
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.16626.20086
Product Version:
16.0.16626.20086
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: 356981608ee664763bba3ac33aefd6981753d949a02e1260dd42d020ac95300f
SHA1: 3512eb5d1078ea61f4737eeea482449984de7753
MD5: 4baa9ec10824f588b309e08e3d0a9f49
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.16626.20000
Product Version:
16.0.16626.20000
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 190ffb060843464a99a45959aed196dfc6058b728e6e32c94f73c539702b49b0
SHA1: 3039333ca235a83cde9005c9dcd60600cc0c3024
MD5: 7accc8258437e7b7a1d9e8e4d5d2ff98
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.15726.20000
Product Version:
16.0.15726.20000
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: 80d58e9c60ff3d7e8f695faa8fd4bd19c711f628f06f2854eb3bbf59bdb66f77
SHA1: d055b438e6d84a976ca0ba5981d2f1d92e120bcb
MD5: 6ec8622b2fac2b2e5c9c575475d124be
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.15726.20000
Product Version:
16.0.15726.20000
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 0594f5ba5bfe146f279ddbc146272e75e9dca3fda3861193a8150c195378d89b
SHA1: cd126fecae98df1f3143a9ae387e96e29ce0501f
MD5: d7905e5312f46a83e46a10616284a1c8
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.15629.20000
Product Version:
16.0.15629.20000
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: d2a24dfca43e6000122289213abcde17f4d476abd277304397a70d352b3b31bd
SHA1: d6694892954fa16d5401572d12f93c707f2dbff8
MD5: f687e58d2fc8a49bd1286fcbc6f2936a
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.15601.20038
Product Version:
16.0.15601.20038
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 9e932e426a6f1c62279546ca278cad23ef55e51089309b2dbdd490a68d39f788
SHA1: aa5c4f642e010dd642e1061db3b4c04dfcc88c3f
MD5: 0bdb544a2da9d3f59678a1742dc7b301
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.15601.20038
Product Version:
16.0.15601.20038
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: f000a50d0c0c45ca5c52d45e007921ba33a7332a05099a25bd377f1ab2655e64
SHA1: a48622b98ac80e837cb0a38f1c1abbe5f2e3fc9f
MD5: 3a8dd3a903f8e4ba6df18c4590186b58
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.15128.20112
Product Version:
16.0.15128.20112
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: aa07b6bc214e0e19ffca6fd8689530a823447f9493fe8cb687c7f2736d64391c
SHA1: 1bca8add70d84644fdd0caebc916c84bb26ff25f
MD5: d1864b8161a8cc19d8aeb680c9a28bbb
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.15128.20112
Product Version:
16.0.15128.20112
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: 46f03146db9a29a7fe1fba345eebcf5c00f897731a268079c969cc4fb0357a25
SHA1: 16ff29241ff7891e50bafb9dc2a6fb44b2b430f2
MD5: dfa6b0bf5ae265b3d295850d86e47fd6
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.14326.20020
Product Version:
16.0.14326.20020
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 131d1eafd045bf93c3d315b06c1b32b2889b07bae56afbcbe1558e8a314d43af
SHA1: 9ddc61923909edd768f09b1105a2895381ee81b5
MD5: f8d3210819dfd6ddb65e1b34143721e4
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.12624.20422
Product Version:
16.0.12624.20422
Language:
1033 (U.S. English)
Size: 1.7MB
SHA256: 358d3467e8ef40527d3dadae7c13059cf4a91b9cf3d1c705a6744061d4a0c758
SHA1: 58c45e08086c7d5746d51dd85e74018deddf76ec
MD5: 68a0747658c74c161bfe5c706cc17a90
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.12624.20422
Product Version:
16.0.12624.20422
Language:
1033 (U.S. English)
Size: 1.3MB
SHA256: 275b510f690dd6e8ffb6bb2544adc9d90220f754b598e0683a7e0ed05cd59fea
SHA1: c46af92368cdafa00630213ea902a36231eb124a
MD5: da4abd97acc3c1dfa79c2a6e0aa4a294
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.12527.21968
Verified
Product Version:
16.0.12527.21968
Language:
1033 (U.S. English)
Size: 1.7MB
SHA256: a7172bba68ef17a77fb4217e7ad620fe9f754225396fe059ce6bd958c779ea33
SHA1: cf37b17c921940796ca0e194649f09f98371df94
MD5: 85e39e8bd45497e43b5af943381e4fd8
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.12527.21962
Verified
Product Version:
16.0.12527.21962
Language:
1033 (U.S. English)
Size: 1.3MB
SHA256: b6ac6cedd8f14b1ee0c06c87bceacd09463062303a2eeaaf131a2f862a0c96df
SHA1: 21ae809806f34273338e447adbda62275a37873c
MD5: 4b00c662aa2db230d29d86cbefea0a1b
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.11929.20234
Product Version:
16.0.11929.20234
Language:
1033 (U.S. English)
Size: 1.3MB
SHA256: 18171f87500ebe0ca685961a2edbaf5846956918e92d556c5af796d628a82850
SHA1: a0f6efba7b520bcbd5aebcb64759ad02e5118680
MD5: 2503ffad9c7db4a07c0e81ac51413c99
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.11929.20234
Product Version:
16.0.11929.20234
Language:
1033 (U.S. English)
Size: 1.7MB
SHA256: 58879b53674e71f0749362dc349a20741db82288479d478147f183e128e6bcea
SHA1: 7dceac8579c52b7bc454b88a1ce0792d8e2cf77f
MD5: 91403b946cb681e3d1336a1f8197d6d1
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
16.0.6925.1018
Product Version:
16.0.6925.1018
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: f61e2e0dd6917202f6cefe71097291ab919c230a0cb114f983c33cce0f437143
SHA1: 5ac1ef39d0a145ba124cd13bfaf74fd1712b8603
MD5: 1dab797b4c67fa49fad6de5fbfad06ee
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
15.0.4569.1503
Verified
Product Version:
15.0.4569.1503
Language:
1033 (U.S. English)
Size: 715.2KB
SHA256: 877b941ed79c14d47dece41a902c0e10affff333f61eb83545823faadbc00ec5
SHA1: 501c6c7ac9299bca9f4140d3a63a62b627f32a23
MD5: 43eeaae8723300f5007b494629791c6e
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
15.0.4569.1503
Verified
Product Version:
15.0.4569.1503
Language:
1033 (U.S. English)
Size: 912.7KB
SHA256: b8e8c6bab40df943769370a93255e5111ae0f79ea835fe5c00a9fb62b3296da2
SHA1: 7b50aeeb156e9e34df24a53892056ff746c18727
MD5: 7593dad61e08512cad1ff6b04bd8cd68
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
15.0.4551.1007
Product Version:
15.0.4551.1007
Language:
1033 (U.S. English)
Size: 912.2KB
SHA256: 95b8cbaf3a4d7cc85c05d9adfccce014af889afad2f303c7b76484552d34aa12
SHA1: cc85aebfcc97fbc2f7ab629768c967e9238bacbf
MD5: a02189b83c2f2ed8656041ed8dd6a777
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
14.0.7015.1000
Verified
Product Version:
14.0.7015.1000
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: 3b3645b7a1870021cba71e5defd643e02762fad3294a107f9f2733b320b3c443
SHA1: d6a0f06653a94e4ef2e3b9d47adc12ce4e6c258d
MD5: 1d89b7c00d6caea48cf64617d6ceb899
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
14.0.7015.1000
Verified
Product Version:
14.0.7015.1000
Language:
1033 (U.S. English)
Size: 965.7KB
SHA256: 67ddac58dd74fa633fb3bceb980a40c77928eeebfcd698e5b602def09f5adfa2
SHA1: cb6bc18a4e2751be9f6a9f3c8add2a05435c11b9
MD5: 2a02f387dc308d3ad95dbbc3c34deaac
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
14.0.6019.1000
Verified
Product Version:
14.0.6019.1000
Language:
1033 (U.S. English)
Size: 1.2MB
SHA256: ea882365ecd55ef6c2cade6ab85483f1eb093348028001c9af7398741bd7e0f8
SHA1: 4baf23e6acd0ce7109fca70a77d428e0aff6d047
MD5: 7c74c407eefe30a423b49e2d10850281
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
14.0.6019.1000
Verified
Product Version:
14.0.6019.1000
Language:
1033 (U.S. English)
Size: 964.9KB
SHA256: d46be6681e64dd028301f3cbc4ff68df760e9516bd1d859d39c827ed704ec63e
SHA1: 76d52421695e48d19144c235fb1d8e51e5ecd120
MD5: cc20506f1aeeb0c0c55b9e8d35f7e39b
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
12.0.6600.1000
Product Version:
12.0.6600.1000
Language:
1033 (U.S. English)
Size: 962.9KB
SHA256: 552c50122f47c7011d84930af98cd23f4e0a57b561c8fe22f7a8a44cf12a459b
SHA1: 9efce54bbe755e3cab28785fa77c7e15bcc2ea9a
MD5: 9400a4be6f7a1ad44784dde01fc7fa95
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
12.0.6212.1000
Product Version:
12.0.6212.1000
Language:
1033 (U.S. English)
Size: 913.9KB
SHA256: f90374ceffe54c74db3ac375549b7fb1f4d2566e6fe81e55a37714cbe428ab6c
SHA1: e5f86b62503dcdfe0b571ecadc3e2b2adc9a8c2f
MD5: 0079e7ee294ac629d57fb8259f5a803e
x86 – 32 Bit
IA-32, 32-bit
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
Product Version:
16.0.14326.20020
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: d3f42f9d5c86ad2bb52aa828efcc4558e85eb6b58871f0d6a87de3e276bd41d4
SHA1: 4e42a13213298c7e1401d2cdfcf9d055067232f5
MD5: 8f4f89ffa300bc6e4d085fc9ba196dec
x64 – 64 Bit
AMD64, x86-64
msoshext.dll
by Microsoft Corporation
for Microsoft Office
Microsoft Office Shell Extension Handlers
Product Version:
16.0.15629.20000
Language:
1033 (U.S. English)
Size: 1.5MB
SHA256: 9aba4715ace9b3282d04ef19620152751a7dd8f044f693d67aad61e85bbd26be
SHA1: 1e1433c2f0f86094a336eafcf8c3b1a663ec2045
MD5: a78188aede3c8f6f87e347e6cfa25bbe
x64 – 64 Bit
AMD64, x86-64