using functions from schannel.dll

Hi,
I am working on a project which requires me to clear the SsleCache. I have found a way to do this through schannel.dll.
A sample of my code:


typedef BOOL (*EmptyCachePtr)(LPSTR pszTargetName, DWORD dwFlags);

HMODULE hSchannel;
hSchannel = LoadLibrary("TEXT("schannel.dll"));

emptyCache = (EmptyCacheFuncPtr) GetProcAddress(hChannel, "SslEmptyCacheA");

if(emptyCache != NULL)
{
emptyCache(NULL, 0)l
}

FreeLibrary(hSchannel);

The code compiles fine, but then when I run it it appears to run fine untill the end of the method where it moves into code which I can't see and crashes with a memory access error: 0xC0000005: Access violation writing location 0xfffffffd.

If anyone needs more info let me know

So... can anyone help me with why this code bugs out?
Cheers

Ed

Also, some of the time I get an error: A buffer overrun has occurred in .exe which has corrupted the program's internal state. Press break to debug or continue to terminate

FIXED: The problem was in the typedef:

It should not include the variable names.
It should be:
typedef BOOL (WINAPI *EMPTYPTR)(LPSTR, DWORD);

method:
{
.....

emptyPtr = (EMPTYPTR) GetProcAddress(hSchannelDll, TEXT("SslEmptyCacheA"));

BOOL ret = emptyPtr(NULL, 0);
.....
}