C / C++ / MFC

I am facing problems in launching my dll application. which is launching correctly for some PCS but it is not launching for some other PCS. Pls check the 2 attachments.
 one is working.jpeg which is working fine. it is expected that when clicking on launch button from client this should show the screen with the CAD model. for some pcs this is working.

Check the other attachment which not-working-screen-shot.png which on launching the application it's not displaying the model. it is a grey color screen whethe there's no opengl window even.


I have developed this dll application in dialog based window. Pls help resolve this problem. Thanks a lot in advance Sujan

CStringT& operator=( __in_z_opt PCYSTR pszSrc )

CStringW s("ABC");
PCWSTR p = (PCWSTR)s;
assert(0 != p[0]); The assert in the code above fails.

class Filter;

typedef void (Filter::*PFN)();

class Filter
{
public:
	void ProcessPart();
	void MyProcessPart();
	
	struct Pair_t
	{
		Pair_t(int d, PFN n) : iid(d), pfn(n) {}

		int  iid;
		PFN  pfn;

	private:

		Pair_t& operator=(const Pair_t&);
	};

};

void Filter::ProcessPart()
{
	PFN pfn2;


        //Here I am getting error C2681
	pfn2 = dynamic_cast<Filter*> (&Filter::ProcessPart);

	Pair_t(9, pfn2);
}

int _tmain(int argc, _TCHAR* argv[])
{
	return 0;
}