__declspec(dllexport) bool __stdcall CheckName(char const * stName)
{
    ...
    rertun false;
}

#include <iostream>
#include <stdio.h>

bool CheckName(char const * stName)
{
    char * nc_name = const_cast<char*>(stName);
    nc_name[0] = '!';
    std::cout << stName << std::endl;
    return false;
}

int main()
{
    char buffer[1024];
    sprintf(buffer, "write to me");
    CheckName(buffer); // success
    char * v = "try";
    CheckName(v); // failed
    return 0;
}

А>__declspec(dllexport) bool __stdcall CheckName(char const * stName)
А>{
А>    ...
А>    rertun false;
А>}
А>

char* pfufel = (char*)stName;
char* pfufel2 = const_cast<char*>(stName);

const char a[] = "a";
CheckName (a);

C:\Work\test2\Release>test2.exe
!rite to me
try

K>>    char * v = "try";
K>>

4.2 Array-to-pointer conversion
2 A string literal (2.13.4) that is not a wide string literal can be converted to an rvalue of type “pointer to char”; a wide string literal can be converted to an rvalue of type “pointer to wchar_t”. In either case, the result is a pointer to the first element of the array. This conversion is considered only when there is an explicit appropriate pointer target type, and not when there is a general need to convert from an lvalue to an rvalue. [Note: this conversion is deprecated. See Annex D. ] For the purpose of ranking in overload resolution (13.3.3.1.1), this conversion is considered an array-to-pointer conversion followed by a qualification conversion (4.4). [Example: "abc" is converted to “pointer to const char” as an array-to-pointer conversion, and then to “pointer to char” as a qualification conversion.]