DLLImport error: System.AccessViolationException with Manifest file and c#
<p>When trying to call (DLLImport) an external c++ dll from a .net application that has a manifest file with requireAdministrator, I get this error trying to call function from the C++ dll in Windows 7 with UAC enabled.</p>

<p>Method I am calling: EnCrypts</p>

<p>System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.</p>

<p>public class BlowFish
    {
        [DllImport("BlowfishTool.dll", CharSet = CharSet.Auto)]
        public static extern String EnCrypt(String strData, String strPassword);</p>

<pre><code>    [DllImport("BlowfishTool.dll", CharSet = CharSet.Auto)]
    public static extern String EnCrypt(String strData, String strPassword, bool doNotUsePassChecking);

    [DllImport("BlowfishTool.dll", CharSet = CharSet.Auto)]
    public static extern String DeCrypt(String strData, String strPassword, bool doNotUsePassChecking);

    [DllImport("BlowfishTool.dll", CharSet = CharSet.Auto)]
    public static extern String DeCrypt(String strData, String strPassword);


    public static String EnCrypts(String strData, String strPassword)
    {
        return EnCrypt(strData, strPassword, true);
    }
}
</code></pre>

<p>}</p>
