Qt5/C++ Fault tolerant heap shim appplied to current process

[jimbo]

Hello,

I've just installed Qt5 (5.6.0-1) and a fresh Windows 7 to a new HDD.
I'm trying to compile a program built about 2 weeks ago on a slightly older version of Qt5,
The program runs OK and works as expected but I'm geting the following warning in the application output window of QtCreator, no compile warnings.

Starting H:\myprog.exe...
FTH: (3496): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***
H:\myprog.exe... exited with code 0

Starting H:\myprog.exe...
FTH: (3496): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***
H:\myprog.exe... exited with code 0

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Any suggestions as to how to clear the warning?

Regards

[jimbo]

Hello,

I built a debug vesion and now get this:-

Starting H:\myprog.exe...
FTH: (5804): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***
This application failed to start because it could not find or load the Qt platform plugin "windows".
 
Reinstalling the application may fix this problem.
Invalid parameter passed to C runtime function.
Invalid parameter passed to C runtime function.
H:\H:\myprog.exe... exited with code 3

Starting H:\myprog.exe...
FTH: (5804): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***
This application failed to start because it could not find or load the Qt platform plugin "windows".

Reinstalling the application may fix this problem.
Invalid parameter passed to C runtime function.
Invalid parameter passed to C runtime function.
H:\H:\myprog.exe... exited with code 3

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What haven't I set?

Regards

[Lesiok]

The most important is line 3.

[jimbo]

Hello,

Sorry for the delay in replying.

The most important is line 3.

OK, but what might be the cure?
I've tried just about every thing I can think of, no success.

Regards