rat.crown wrote: *(( int __RPC_FAR * )_StubMsg.Buffer)++ = *nCount; Replace above code with *(( int __RPC_FAR * )_StubMsg->Buffer) = *nCount; _StubMsg->Buffer++; - Nilesh "Reading made Don Quixote a gentleman. Believing what he read made him mad" -George Bernard Shaw

I got the reason, I have to change the VC/tools/option/directory! Now every thing are OK. Thanks! Its my first using SDK.

I download the file:PSDK-x86.exe from the microsoft website ( Windows® Server 2003 SP1 Platform SDK Web Install ) http://www.microsoft.com/downloads/details.aspx?FamilyId=A55B6B43-E24F-4EA3-A93E-40C0EC4F68E5&displaylang=en Then I installed it on my computer. In the folder: C:\Program Files\Microsoft Platform SDK\Include , I got the file BaseTsd.h, But in the file, there are no the Data type declared!!! Thanks

Rule #1 - Don't beleive everything you read in MSDN. Rule #2 - See Rule #1 I found them defined in a myriad of files. DWORD_PTR and PDWORD_PTR were defined in GCHOST.H and BaseTsd.h ULONGLONG was defined in PROGRAM FILES\MICROSOFT VISUAL STUDIO .NET 2003\SDK\v1.1\Tool Developers Guide\Samples\smc\Win32.h(38):typedef unsigned __int64 ULONGLONG; and PROGRAM FILES\MICROSOFT VISUAL STUDIO .NET 2003\Vc7\PlatformSDK\Include\WTypes.h(398):typedef unsigned __int64 ULONGLONG; and PROGRAM FILES\MICROSOFT VISUAL STUDIO .NET 2003\Vc7\PlatformSDK\Include\WinNT.h(446):typedef unsigned __int64 ULONGLONG;

Besides, what's the type of filter_path? Why do you need a cast to (unsigned short*)? Hint: if filter_path is a char*, as I suspect, simply casting to (unsigned short*) won't work. -- jlr http://jlamas.blogspot.com/[^]

:laugh: