Verified file intelligence
Official-source groundedVersions, hashes, and signatures can vary by supported package release. This report does not invent a universal "latest file" value. Confirm package selection against WinLab locally observed signed-file inventory (WinLab collector).
Verified basecsp.dll file versions
5 observed buildsDistinct locally observed specimens are deduplicated by version, architecture, and SHA-256. A signature result identifies the inspected file; it is not a recommendation to copy a loose DLL into Windows.
VersionArchitectureFile sizeLanguageSignature
10.0.26100.3323 (WinBuild.160101.0800)x64293.5 KBEnglish (United States)✓ Valid
PublisherMicrosoft CorporationDescription / observed sourceMicrosoft Base Smart Card Crypto Provider · Installed applicationSHA-256d4c902838b6386b9046a6ebd2f1fd2c32c62e48fdaf24c01459d9df2d25907c1
10.0.26100.8737 (WinBuild.160101.0800)x64293.5 KBEnglish (United States)✓ Valid
PublisherMicrosoft CorporationDescription / observed sourceMicrosoft Base Smart Card Crypto Provider · Installed applicationSHA-2564b54be54d29c7c95aaf6f6f8d38541e656f01106320842bf6b3fbb6efcdc68ae
10.0.26100.8737 (WinBuild.160101.0800)x86235.5 KBEnglish (United States)✓ Valid
PublisherMicrosoft CorporationDescription / observed sourceMicrosoft Base Smart Card Crypto Provider · Installed applicationSHA-25646fb35082ac162eab75fdb8d1fd78cd9f650f5d133d8ad58628fe9638ec655bb
10.0.26100.8972 (WinBuild.160101.0800)x64293.5 KBEnglish (United States)✓ Valid
PublisherMicrosoft CorporationDescription / observed sourceMicrosoft Base Smart Card Crypto Provider · Installed applicationSHA-256d4c902838b6386b9046a6ebd2f1fd2c32c62e48fdaf24c01459d9df2d25907c1
10.0.26100.8972 (WinBuild.160101.0800)x86234.0 KBEnglish (United States)✓ Valid
PublisherMicrosoft CorporationDescription / observed sourceMicrosoft Base Smart Card Crypto Provider · Installed applicationSHA-256c6669198d06478df28eca98fb01adcc46b723100bf58167977b5296889523042
Evidence method: file metadata read from the observed specimen, SHA-256 calculated by WinLab, and digital-signature status checked through Windows Authenticode. Observed 2026-08-31.
Frequently Asked Questions
AI-assisted / evidence reviewedHow we use AI: AI helps draft clear answers, but every published technical claim must be tied to an approved source, pass safety checks, and receive editorial review. It may not invent versions, hashes, signatures, download links, or success rates.
What is basecsp.dll?
basecsp.dll is identified in the observed specimens as Microsoft Base Smart Card Crypto Provider, published by Microsoft Corporation for Microsoft® Windows® Operating System. Its identity depends on the complete package, build, and architecture—not its filename alone.
Which basecsp.dll version is correct?
There is no universal loose-file version. Match the affected program, package build, x64/x86 architecture, Microsoft or publisher signature, file size, and SHA-256 to the verified basecsp.dll evidence.
Should I download basecsp.dll by itself?
No. Repair basecsp.dll through Windows Update or supported Windows servicing so dependencies and servicing metadata remain compatible.