VOID CHAR_TO_UNICODE_STRING(PCHAR ch,PUNICODE_STRING unicodeBuffer)
{
    ANSI_STRING ansiBuffer;
    UNICODE_STRING buffer_proc;
    ULONG len = strlen(ch);

    ansiBuffer.Buffer = ch;
    ansiBuffer.Length = ansiBuffer.MaximumLength = (USHORT)len;
    RtlAnsiStringToUnicodeString(unicodeBuffer,&ansiBuffer,TRUE);

    DbgPrint("%ansiBuffer = %Z\n",&ansiBuffer);  
    DbgPrint("%unicodeBuffer = %wZ\n",unicodeBuffer); 
}

        PCHAR procName ="dsac";
        UNICODE_STRING unicodeBuffer;
        RtlInitUnicodeString(&unicodeBuffer,L"");
        CHAR_TO_UNICODE_STRING(procName,&unicodeBuffer);