参考:
https://stackoverflow.com/questions/46178559/how-to-detect-if-visual-c-2017-redistributable-is-installed
https://stackoverflow.com/questions/12206314/detect-if-visual-c-redistributable-for-visual-studio-2012-is-installed
It depends on what version you are using. These two 2012 keys have worked well for me with their corresponding versions to download for Update 4. Please be aware that some of these reg locations may be OS-dependent. I collected this info from a Windows 10 x64 box. I'm just going to go ahead and dump all of these redist versions and the reg keys I search for to detect installation.:
Visual C++ 2005
Microsoft Visual C++ 2005 Redistributable (x64)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\1af2a8da7e60d0b429d7e6453b3d0182
Configuration: x64
Version: 6.0.2900.2180
Direct Download URL: https://download.microsoft.com/download/8/B/4/8B42259F-5D70-43F4-AC2E-4B208FD8D66A/vcredist_x64.EXE
Microsoft Visual C++ 2005 Redistributable (x86)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\c1c4f01781cc94c4c8fb1542c0981a2a
Configuration: x86
Version: 6.0.2900.2180
Direct Download URL: https://download.microsoft.com/download/8/B/4/8B42259F-5D70-43F4-AC2E-4B208FD8D66A/vcredist_x86.EXE
Visual C++ 2008
Microsoft Visual C++ 2008 Redistributable - x64 9.0.30729.6161 (SP1)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\67D6ECF5CD5FBA732B8B22BAC8DE1B4D
Configuration: x64
Version: 9.0.30729.6161 (Actual $Version data in registry: 0x9007809 [DWORD])
Direct Download URL: https://download.microsoft.com/download/2/d/6/2d61c766-107b-409d-8fba-c39e61ca08e8/vcredist_x64.exe
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (SP1)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\6E815EB96CCE9A53884E7857C57002F0
Configuration: x86
Version: 9.0.30729.6161 (Actual $Version data in registry: 0x9007809 [DWORD])
Direct Download URL: https://download.microsoft.com/download/d/d/9/dd9a82d0-52ef-40db-8dab-795376989c03/vcredist_x86.exe
Visual C++ 2010
Microsoft Visual C++ 2010 Redistributable (x64)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\1926E8D15D0BCE53481466615F760A7F
Configuration: x64
Version: 10.0.40219.325
Direct Download URL: https://download.microsoft.com/download/1/6/5/165255E7-1014-4D0A-B094-B6A430A6BFFC/vcredist_x64.exe
Microsoft Visual C++ 2010 Redistributable (x86)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\1D5E3C0FEDA1E123187686FED06E995A
Configuration: x86
Version: 10.0.40219.325
Direct Download URL: https://download.microsoft.com/download/1/6/5/165255E7-1014-4D0A-B094-B6A430A6BFFC/vcredist_x86.exe
Visual C++ 2012
Microsoft Visual C++ 2012 Redistributable (x64)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Dependencies\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}
Configuration: x64
Version: 11.0.61030.0
Direct Download URL: https://download.microsoft.com/download/1/6/B/16B06F60-3B20-4FF2-B699-5E9B7962F9AE/VSU_4/vcredist_x64.exe
Microsoft Visual C++ 2012 Redistributable (x86)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Dependencies\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}
Configuration: x86
Version: 11.0.61030.0
Direct Download URL: https://download.microsoft.com/download/1/6/B/16B06F60-3B20-4FF2-B699-5E9B7962F9AE/VSU_4/vcredist_x86.exe
version caveat: Per user Wai Ha Lee's findings, "...the binaries that come with VC++ 2012 update 4 (11.0.61030.0
) have version 11.0.60610.1
for the ATL and MFC binaries, and 11.0.51106.1
for everything else, e.g. msvcp110.dll and msvcr110.dll..."
Visual C++ 2013
Microsoft Visual C++ 2013 Redistributable (x64)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Dependencies\{050d4fc8-5d48-4b8f-8972-47c82c46020f}
Configuration: x64
Version: 12.0.30501.0
Direct Download URL: https://download.microsoft.com/download/2/E/6/2E61CFA4-993B-4DD4-91DA-3737CD5CD6E3/vcredist_x64.exe
Microsoft Visual C++ 2013 Redistributable (x86)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Dependencies\{f65db027-aff3-4070-886a-0d87064aabb1}
Configuration: x86
Version: 12.0.30501.0
Direct Download URL: https://download.microsoft.com/download/2/E/6/2E61CFA4-993B-4DD4-91DA-3737CD5CD6E3/vcredist_x86.exe
Visual C++ 2015
Consider using the 2015-2019 bundle as an alternative
Microsoft Visual C++ 2015 Redistributable (x64) - 14.0.24215
Registry Key: HKLM\SOFTWARE\Classes\Installer\Dependencies\{d992c12e-cab2-426f-bde3-fb8c53950b0d}
Configuration: x64
Version: 14.0.24215.1
Direct Download URL: https://download.microsoft.com/download/6/A/A/6AA4EDFF-645B-48C5-81CC-ED5963AEAD48/vc_redist.x64.exe
Microsoft Visual C++ 2015 Redistributable (x86) - 14.0.24215
Registry Key: HKLM\SOFTWARE\Classes\Installer\Dependencies\{e2803110-78b3-4664-a479-3611a381656a}
Configuration: x86
Version: 14.0.24215.1
Direct Download URL: https://download.microsoft.com/download/6/A/A/6AA4EDFF-645B-48C5-81CC-ED5963AEAD48/vc_redist.x86.exe
Visual C++ 2017
Consider using the 2015-2019 bundle as an alternative
Caveat: There's either a new 2017 registry convention being used, or it hasn't been finalized, yet. As I'm guessing the upper-most keys of: [HKEY_CLASSES_ROOT\Installer\Dependencies\,,amd64,14.0,bundle]
and [HKEY_CLASSES_ROOT\Installer\Dependencies\,,x86,14.0,bundle]
are subject to change, or at least have different nested GUIDs, I'm going to use list the key that ends with a GUID.
Microsoft Visual C++ 2017 Redistributable (x64) - 14.16.27012
Registry Key: [HKEY_CLASSES_ROOT\Installer\Dependencies\VC,redist.x64,amd64,14.16,bundle\Dependents\{427ada59-85e7-4bc8-b8d5-ebf59db60423}]
Configuration: x64
Version: 14.16.27012.6
Direct Download URL: https://download.visualstudio.microsoft.com/download/pr/9fbed7c7-7012-4cc0-a0a3-a541f51981b5/e7eec15278b4473e26d7e32cef53a34c/vc_redist.x64.exe
Microsoft Visual C++ 2017 Redistributable (x86) - 14.16.27012
Registry Key: [HKEY_CLASSES_ROOT\Installer\Dependencies\VC,redist.x86,x86,14.16,bundle\Dependents\{67f67547-9693-4937-aa13-56e296bd40f6}]
Configuration: x86
Version: 14.16.27012.6
Direct Download URL: https://download.visualstudio.microsoft.com/download/pr/d0b808a8-aa78-4250-8e54-49b8c23f7328/9c5e6532055786367ee61aafb3313c95/vc_redist.x86.exe
Visual C++ 2019 (2015-2019 bundle)
Caveat: There's another new registry convention being used for Visual C++ 2019. There also doesn't appear to be a standalone installer for Visual C++ 2019, only this bundle installer that is Visual C++ 2015 through 2019.
14.21.27702
Microsoft Visual C++ 2015-2019 Redistributable (x64) - 14.21.27702
Registry Key: [HKEY_CLASSES_ROOT\Installer\Dependencies\VC,redist.x64,amd64,14.21,bundle\Dependents\{f4220b74-9edd-4ded-bc8b-0342c1e164d8}]
Configuration: x64
Version: 14.21.27702
Direct Download URL: https://download.visualstudio.microsoft.com/download/pr/9e04d214-5a9d-4515-9960-3d71398d98c3/1e1e62ab57bbb4bf5199e8ce88f040be/vc_redist.x64.exe
Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.21.27702
Registry Key: [HKEY_CLASSES_ROOT\Installer\Dependencies\VC,redist.x86,x86,14.21,bundle\Dependents\{49697869-be8e-427d-81a0-c334d1d14950}]
Configuration: x86
Version: 14.21.27702
Direct Download URL: https://download.visualstudio.microsoft.com/download/pr/c8edbb87-c7ec-4500-a461-71e8912d25e9/99ba493d660597490cbb8b3211d2cae4/vc_redist.x86.exe
14.22.27821
Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.22.27821
Registry Key: [HKEY_CLASSES_ROOT\Installer\Dependencies\VC,redist.x86,x86,14.22,bundle\Dependents\{5bfc1380-fd35-4b85-9715-7351535d077e}]
Configuration: x86
Version: 14.22.27821
Direct Download URL: https://download.visualstudio.microsoft.com/download/pr/0c1cfec3-e028-4996-8bb7-0c751ba41e32/1abed1573f36075bfdfc538a2af00d37/vc_redist.x86.exe
Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.22.27821
Registry Key: [HKEY_CLASSES_ROOT\Installer\Dependencies\VC,redist.x64,amd64,14.22,bundle\Dependents\{6361b579-2795-4886-b2a8-53d5239b6452}]
Configuration: x64
Version: 14.22.27821
Direct Download URL: https://download.visualstudio.microsoft.com/download/pr/cc0046d4-e7b4-45a1-bd46-b1c079191224/9c4042a4c2e6d1f661f4c58cf4d129e9/vc_redist.x64.exe