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    <p>This issue is almost invariably a simple one. The code is bad. It's rarely the tools, just from a statistical analysis. Untold millions of people are using Visual Studio every day and maybe a few are using your code - which bit of code is getting the better testing? I guarantee that, if this were a problem with VS, we would probably already have found it.</p> <p>What the statement means is that, when you try to access memory that isn't yours, it's usually because you're doing it with a corrupted pointer, that came from somewhere else. That's why it's stating the indication.</p> <p>With memory corruption, the catching of the error is rarely near the root cause of the error. And the effects are exactly what you describe, seemingly random. You'll just have to look at the usual culprits, things like:</p> <ul> <li>uninitialised pointers or other values.</li> <li>writing more to a buffer than its size.</li> <li>resources shared by threads that aren't protected by mutexes.</li> </ul> <p>Working backwards from a problem like this to find the root cause is <em>incredibly</em> difficult given that so much could have happened between the creation of the problem and the detection of the problem.</p> <p>I mostly find it's easier to have a look at what <em>is</em> corrupt (say, a specific pointer) and then do manual static analysis of the code to see what could have corrupted it, checking for the usual culprits as shown above. However, even this won't catch long chains of problems.</p> <p>I'm not familiar enough with VS to know but you may also want to look into the possibility of using a memory tracking tool (like valgrind for Linux) to see if it can spot any obvious issues.</p>
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    1. POAttempted to read or write protected memory. This is often an indication that other memory is corrupt
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    1. COYou can get a corrupted pointer from bad memory as well. If this is not happening on a server with ECC memory, try a long-running memory test utility to eliminate the hardware as a cause.
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    2. COI know its not a hardware issue cause it happens on multiple servers. Thanks for indicating theres something bad in the code captain obvious. I'm not blaming visual studio. As stated the application runs fine for a random period of time. Its not easy to reproduce and i've been trying to identify the issue for weeks now.
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    3. CO@Someone Else: I hardly think name calling is going to get you much help.
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