編譯google talk libjingle 成功，但是編譯PCP時出現link錯誤，請指教

我使用VC++2005編譯的，單獨編譯linjingle成功，但編譯PCP時錯誤，出現以下錯誤： 1>libjingle.lib(pathutils.obj) : error LNK2019: unresolved external symbol __imp__SHGetSpecialFolderPathW@16 referenced in function "bool __cdecl talk_base::GetAppDataFolder(class talk_base::Pathname &,bool,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?GetAppDataFolder@talk_base@@YA_NAAVPathname@1@_NABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)

1>libjingle.lib(pathutils.obj) : error LNK2019: unresolved external symbol __imp__SHFileOperationW@4 referenced in function "bool __cdecl talk_base::CleanupTemporaryFolder(void)" (?CleanupTemporaryFolder@talk_base@@YA_NXZ)

1>libjingle.lib(helpers1.obj) : error LNK2019: unresolved external symbol __imp__CryptReleaseContext@8 referenced in function "void __cdecl cricket::InitRandom(char const *,unsigned int)" (?InitRandom@cricket@@YAXPBDI@Z)

1>libjingle.lib(helpers1.obj) : error LNK2019: unresolved external symbol __imp__CryptGenRandom@12 referenced in function "void __cdecl cricket::InitRandom(char const *,unsigned int)" (?InitRandom@cricket@@YAXPBDI@Z)

1>libjingle.lib(helpers1.obj) : error LNK2019: unresolved external symbol __imp__CryptAcquireContextW@20 referenced in function "void __cdecl cricket::InitRandom(char const *,unsigned int)" (?InitRandom@cricket@@YAXPBDI@Z)

1>F:/soft/xmpp/libjingle-0.4.0/libjingle-0.4.0/talk/Debug/pcp.exe : fatal error LNK1120: 5 unresolved externals

 

怎麼解決啊，請指教啊，謝謝