PVS-Studio warning V597 for NetXMS

void I_SHA1Final(....)
{
  unsigned char finalcount[8];
  ....
  memset(finalcount, 0, 8);
  SHA1Transform(context->state, context->buffer);
}

This suspicious code was found in NetXMS project by PVS-Studio static code analyzer.
Warning message is:
V597 The compiler could delete the 'memset' function call, which is used to flush 'finalcount' buffer. The RtlSecureZeroMemory() function should be used to erase the private data. sha1.cpp 233

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