CryptoAPI

When using SQL 2000 personal desktop (i.e MSDE) on win 98 Machine with our
VB6 application we sometimes get this error

[Microsoft][ODBC SQL Server Driver][SQL Server]CryptoAPI function
'CryptAcquireContext' failed.
Error 0x8009001d: Provider DLL failed to initialize correctly.

On Win2000/2003 XP we not get this error any one come across this before


Thanks
Andy