MT4 Windows 8.1: why some indicators don't work anymore?

Just an idea about that tracer :

If you have access to the code of your indi, go to metaeditor, place breakpoint at a point you are certain to encounter, no matter what (if you don't know, place it at first line in onCalculate) and don't forget to set the options to nzdcad (since it seems to be the problem), and there you go.
Run your code step by step using spies on your variables The joy of running after bugs

Good luck and good rest for the week end

Thank You for your suggestion.

the new build will crash on windows 7 if i try to apply an indicator but click cancel instead of ok. please can someone verify this

Only on build 840 it has been fixed on build 842 unless of course in typical MetaQuotes style they have reintroduced it into a later build.

thanks : )

Dear All,


pb is not fixed..
I'm back to you with an exemple that works perfectly well on windows 7 , meta version 4 build 840 . This basic( attached ) indi gives high, low , close of last year and number of Bars .. I got it from the forum. You get the results in expert messages.
If you try to make it works on same meta version on Windows 8 then it crashes the meta program ( at least for me ).
I have analyzed the code and I don't see why such issue.I'm really puzzled.
Of course I'm not a great expert in coding .. maybe someone will find the pb ?
Thanks in advance .

So after trying windows 8 et now windows 10 I have found some Indi codes may work perfectly well on Windows 7 but not anylonger on latest windows versions..

I have changed my program with a different coding and now it works.
If your are interested you will find the code crashing windows 8 and windows10 below. I would like to understand why ..that remains a black hole to me.

///////////////
int start()
{

int actualyear;
double low= 5000;
double high = 0;
double close =0;
int pos=0;
int counted_bars=IndicatorCounted();

actualyear=TimeYear(iTime(NULL,PERIOD_MN1,0));



if(counted_bars < 0)
return(-1);
//---- last counted bar will be recounted
if(counted_bars > 0)

counted_bars--;


while(actualyear-TimeYear(iTime(NULL, PERIOD_MN1, pos))<=1)
{
if(actualyear-TimeYear(iTime(NULL, PERIOD_MN1, pos))==1)
{
if(iHigh(NULL,PERIOD_MN1,pos)>high)
high=iHigh(NULL,PERIOD_MN1,pos);


if(iLow(NULL,PERIOD_MN1,pos)<low)
low=iLow(NULL,PERIOD_MN1,pos);

if(TimeMonth(iTime(NULL, PERIOD_MN1, pos))==12)
close=iClose(NULL,PERIOD_MN1,pos);


}



pos++;
}

///////////////////////

ohh thats why you can say about that london closing fibo indi is having bugs. really horrible it is when i see some one saying it is good working but it is not working for me. it takes 25 percent of cpu and make system to hang and mt4 is not working.. really thanking you so much.

Thank you Ramzam. no problem . I understand your concern. Forexfactory forum is a good place despite you may wait for an answer for years..

you are right. it will take more than years too.. but if we know coding that will be added knowledge but i do not know coding.. infact i have good idea of supertrend indicator too.. but i tried with sm and he said due to age and not understands... i tried with another side to do employ but he also said that not possible.. but it is good if it to be worked out. and i think it is possible only