1. DOS & Long File Names
- Posted by Robert McDougal <thedoog at MAILEXCITE.COM> Jul 26, 1998
- 446 views
I'm using DOS 6.21 and I'm trying to figure out a way to get a Euphoria program to display the abbreviated file names that DOS will show for Windows 95+ long file names and the corresponding actual Windows name. I'd imagine this would involve directly reading some separate sector or something which is way, WAY above my understanding of how to do. (Being able to create a long-named file for future transport to windows would also be a big plus.) Any help on this would be GREATLY appreciated. Semi-Related: I have very limited hard drive space. I want to scan for Windows programs. I have a program that will let me find *.exe files, BUT I don't know what the difference in the header between DOS executables and Windows Executables. (I want to get rid of any Windows programs floating around on my computer. There probably are some because I found one the other day.) So anybody know what the difference is? Thanks for all your help. - Robert McDougal Free web-based email, Forever, From anywhere! http://www.mailexcite.com
2. Re: DOS & Long File Names
- Posted by Michael Raley <mjronline at IT-WORKS.COM> Jul 26, 1998
- 445 views
> I want to scan for Windows programs. I have a program that will let >me find *.exe files, BUT I don't know what the difference in the header between DOS executables and >Windows Executables. (I want to get rid of any Windows programs floating around on my computer. There >probably are some because I found one the other day.) So anybody know what the difference is? use debug <filename> from DOS; -d dumps the contents in Hex and Ascii format. The first block of bytes displayed should tell you that it is a MS-Windows program. use q to quit debugging mode. NEW! HTTP://www.geocities.com/SiliconValley/Lab/7577 Michael J Raley's Modular Reality Journal -----Original Message----- From: Robert McDougal <thedoog at MAILEXCITE.COM> To: EUPHORIA at cwisserver1.mcs.muohio.edu <EUPHORIA at cwisserver1.mcs.muohio.edu> Date: Sunday, July 26, 1998 4:18 PM Subject: DOS & Long File Names
3. Re: DOS & Long File Names
- Posted by Jacques Deschenes <desja at GLOBETROTTER.QC.CA> Jul 26, 1998
- 442 views
- Last edited Jul 27, 1998
At 16:14 26/07/98 -0700, you wrote: > I have very limited hard drive space. I want to scan for Windows > programs. I have a program that will let me find *.exe files, BUT I don't know > what the difference in the header between DOS executables and Windows > Executables. (I want to get rid of any Windows programs floating around on my > computer. There probably are some because I found one the other day.) So > anybody know what the difference is? Thanks for all your help. > - Robert McDougal here is a function that will check a file to determine if it is a windows executable. include file.e constant signatures = { -- possible window file signatures "PE",-- window NT file "NE" -- window 3.x or later file } -- this function return 1 if the file is a widowns executable (.DLL or .EXE) -- return 0 if not a windows exec -- return -1 if can't open it. atom fh,ok integer c,hdr sequence FileId fh = open(FileName,"rb") if fh = -1 then return -1 end if FileId = getc(fh) & getc(fh) if compare(FileId,"MZ") != 0 then return 0 -- it's not a DOS or windows executable end if ok = seek(fh,#18) c = getc(fh)+256*getc(fh) if c < #40 then close(fh) return 0 -- not a window file. (DOS executable) end if ok = seek(fh,#3C) hdr = getc(fh)+256*getc(fh) -- offset of new executable header ok = seek(fh,hdr) -- window file header start here. FileId = getc(fh) & getc(fh) -- new header signature close(fh) if find(FileId,signatures) then return 1 -- yes it is a windows executable file. else return 0 -- unkown file type. end if ------------------------------ Jacques Deschenes Baie-Comeau, Quebec Canada desja at globetrotter.qc.ca