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ShopOn a Windows Vista SP1-based computer, the SCardReleaseContext function returns a “0×80100004 (SCARD_E_INVALID_PARAMETER)” error code when the Cryptographic Service Provider process closes
Consider the following scenario:
- You are running a Windows Vista Service Pack 1-based computer.
- You use a custom Cryptographic Service Provider (CSP) that is based on the winscard module.
When the CSP process closes in this scenario, the SCardReleaseContext function returns a “0×80100004 (SCARD_E_INVALID_PARAMETER)” error code.
There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Windows6.0-KB949655-x86.msu
64-Bit Download: Windows6.0-KB949655-x64.msu
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB949655.
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