用代码实现注册Ocx和Dll

在windows系统中，可以通过Regsvr32来实现注册ocx或者dl，

编程时，调用Regsvr32来注册，却不能正常执行。尤其是在Win7系统中，需要管理员身份才能运行。

使用下面的代码则能正常注册。

//注册

function RegisterDllServer(FileName: string): boolean;
var
nDllAddr: integer;
bstr: string;
ProcAddr: Pointer;
str: PAnsiChar;
begin
Result := False;

if not FileExists(FileName) then
exit;

nDllAddr:=LoadLibrary(PWideChar(FileName));

if nDllAddr <> 0 then
begin
bstr:='DllRegisterServer'+chr(0);

str := PAnsiChar(AnsiString(bstr));
ProcAddr := GetProcAddress(nDllAddr,str);
if ProcAddr<>nil then
begin
CallWindowProc(ProcAddr,nDllAddr,0,0,0);
Result := True;
end;

FreeLibrary(nDllAddr);
end;
end;

//反注册

function UnRegisterDllServer(FileName: string): boolean;
var
nDllAddr: integer;
bstr: string;
ProcAddr: Pointer;
str: PAnsiChar;
begin
Result := False;

if not FileExists(FileName) then
exit;

nDllAddr:=LoadLibrary(PWideChar(FileName));

if nDllAddr <> 0 then
begin
bstr:='DllUnregisterServer'+chr(0);

str := PAnsiChar(AnsiString(bstr));
ProcAddr := GetProcAddress(nDllAddr,str);
if ProcAddr<>nil then
begin
CallWindowProc(ProcAddr,nDllAddr,0,0,0);
Result := True;
end;

FreeLibrary(nDllAddr);
end;
end;