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Hi All, I'm having trouble with the routine below. If I run it as written, it only finds all of the top level directories, but it works. If I change the line .if !(eax & FILE_ATTRIBUTE_DIRECTORY) to .if (eax & FILE_ATTRIBUTE_DIRECTORY) This is the way it should be (?), it runs to the bottom of the first nested directory and gets stuck in a loop. Please help me find the problem.

.data
szDot         db '.',0
szDotDot      db '..',0
szStar        db '*',0
szBackSlash   db '\',0
szSearchStart db 'C:',0
wfd WIN32_FIND_DATA<>

;invoke FindAllFiles,addr szSearchStart
;==========================================================================

FindAllFiles proc PathStr:DWORD

LOCAL DisplayPathStr:BYTE
LOCAL SearchPathStr:BYTE
LOCAL PathBuffer:BYTE
LOCAL CmpByte:BYTE
LOCAL Compare1:DWORD
LOCAL Compare2:DWORD

;Create 'Display' Path String
invoke lstrcpy,addr DisplayPathStr,PathStr
invoke lstrlen,addr DisplayPathStr
mov    cl,byte ptr
mov    CmpByte,cl
invoke lstrcmp,addr CmpByte,addr szBackSlash
.if    eax != 0
   invoke lstrcat,addr DisplayPathStr,addr szBackSlash
.endif

;Create 'Search' Path String
invoke lstrcpy,addr SearchPathStr,PathStr
invoke lstrlen,addr SearchPathStr
mov    cl,byte ptr
mov    CmpByte,cl
invoke lstrcmp,addr CmpByte,addr szBackSlash
.if    eax != 0
   invoke lstrcat,addr SearchPathStr,addr szBackSlash
   invoke lstrcat,addr SearchPathStr,addr szStar
.else
   invoke lstrcat,addr SearchPathStr,addr szStar
.endif

;Begin the search
invoke FindFirstFile,addr SearchPathStr,addr wfd
.if    eax != INVALID_HANDLE_VALUE
   mov    hSearch,eax
   .while eax != ERROR_NO_MORE_FILES
      mov    eax,wfd.dwFileAttributes
      .if    !(eax & FILE_ATTRIBUTE_DIRECTORY)
         invoke lstrcmp,offset wfd.cFileName,addr szDot
         mov    Compare1,eax
         invoke lstrcmp,offset wfd.cFileName,addr szDotDot
         mov    Compare2,eax
         .if   (Compare1 != 0) && (Compare2 != 0)
            invoke lstrcpy,addr PathBuffer,addr DisplayPathStr
            invoke lstrcat,addr PathBuffer,offset wfd.cFileName
            invoke FindAllFiles,addr PathBuffer
         .endif
      .else
;Do something with the file (we are just adding it to a listbox)
         invoke lstrcpy,addr PathBuffer,addr DisplayPathStr
         invoke lstrcat,addr PathBuffer,offset wfd.cFileName
         invoke SendMessage,hListBox,LB_ADDSTRING,0,addr PathBuffer
      .endif
      invoke FindNextFile,hSearch,addr wfd
      invoke GetLastError
   .endw
   invoke FindClose,hSearch
.endif
ret

FindAllFiles endp

;==========================================================================

Yes, but I'm using the bitwise and. But the problem seems to be that after you run out of files to 'find' at the bottom of some nested subdirs, and FindClose is invoked. What should happen next is FindNextFile gets invoked again (this does happen) but the 'path' is incorrect and I kepp finding the same file over and over in a endless loop.