Hi, I want to reduce exe size as small as possible (without use of UPX) Here are options i use: #pragma comment(linker,"/INCREMENTAL:NO") #pragma comment(linker,"/OPT:NOWIN98") #pragma comment(linker,"/MERGE:.text=.data") #pragma comment(linker,"/MERGE:.rdata=.data") #pragma comment(linker,"/MERGE:.reloc=.data") #pragma comment(linker,"/ignore:4078") #pragma comment(linker,"/ALIGN:16384") #pragma comment(linker,"/nodefaultlib") #pragma comment(linker,"/opt:ref") #pragma comment(linker,"/entry:WinMain") #pragma optimize("gsy",on) #pragma comment(linker,"/FILEALIGN:0x200") Moreover i use /O1 /Zl options for compiler... Which options can i add / modify /delete to reduce exe size ? I read that we can use the Dll version of Run-time to reduce size ? Is it a good solution ? How can i add it to my project ? How can i use it? i use MVC++ 6 Thanks