The latest stable Synchronet release is v3.21e-Win32 (install), released Mar-2026.

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howto:door:index [2023/06/14 17:29] – [See Also] Add link to TW2002 article digital manhowto:door:index [2026/05/30 00:34] (current) – Replace dead external link with archive.org copy Claude.Ai
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 ^ Software ^ Write File(s)                 ^ Read File(s)     ^ ^ Software ^ Write File(s)                 ^ Read File(s)     ^
 | Mystic        | ''DOOR32.SYS''                        |                  | | Mystic        | ''DOOR32.SYS''                        |                  |
-| GAP | ''DOOR.SYS''                 | ''DOOR.SYS'': Flags, SecLevel, ExpireDate, FileDLed, KBsDLed, MinuteCredits |+| GAP (original)| ''DOOR.SYS'' (31 lines)                | ''DOOR.SYS'': Flags, SecLevel, ExpireDate, FileDLed, KBsDLed | 
 +| GAP (extended)| ''DOOR.SYS'' (52 lines)                | ''DOOR.SYS'': Flags, SecLevel, ExpireDate, FileDLed, KBsDLed, MinuteCredits |
 | WWIV | ''CHAIN.TXT''                         |                  | | WWIV | ''CHAIN.TXT''                         |                  |
 | PCBoard 15.x | ''PCBOARD.SYS'' and ''USERS.SYS''     | ''USERS.SYS'': SecLevel and ExpireDate | | PCBoard 15.x | ''PCBOARD.SYS'' and ''USERS.SYS''     | ''USERS.SYS'': SecLevel and ExpireDate |
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 | SpitFire | ''SFDOORS.DAT''                       |                  | | SpitFire | ''SFDOORS.DAT''                       |                  |
 | TriBBS | ''TRIBBS.SYS''                        |                  | | TriBBS | ''TRIBBS.SYS''                        |                  |
-| MegaMail | ''UTIDOOR.TXT''                       |                  | 
 | Solar Realms | ''DOORFILE.SR''                       |                  | | Solar Realms | ''DOORFILE.SR''                       |                  |
 | Synchronet  | ''XTRN.DAT''         | ''MODUSER.DAT'': Credits, SecLevel, Flags, ExpireDate, MinuteCredits  | | Synchronet  | ''XTRN.DAT''         | ''MODUSER.DAT'': Credits, SecLevel, Flags, ExpireDate, MinuteCredits  |
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   * [[ftp://vert.synchro.net/main/util/patchcrt.zip]]   * [[ftp://vert.synchro.net/main/util/patchcrt.zip]]
  
-[[http://www.merlyn.demon.co.uk/pas-r200.htm|This]] is an entire page on the subject matter with links to several patching programs.+[[http://web.archive.org/web/20200202223544/http://www.merlyn.demon.co.uk:80/pas-r200.htm|This]] is an entire page on the subject matter with links to several patching programs.
  
 You may need to patch the ''.EXE'' files before you can even install or setup the door. You may need to patch the ''.EXE'' files before you can even install or setup the door.
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 The 16-bit DOS component of the Synchronet FOSSIL driver for Windows (all flavors) is called ''DOSXTRN.EXE'' and it is located in the Synchronet ''[[dir:exec]]'' directory. This program [[:faq:win#win64|will not work]] with 64-bit versions of Windows since Microsoft does not include a DOS virtual machine (NTVDM) with those versions of Windows. The 16-bit DOS component of the Synchronet FOSSIL driver for Windows (all flavors) is called ''DOSXTRN.EXE'' and it is located in the Synchronet ''[[dir:exec]]'' directory. This program [[:faq:win#win64|will not work]] with 64-bit versions of Windows since Microsoft does not include a DOS virtual machine (NTVDM) with those versions of Windows.
  
-=== Windows 9x === +=== Windows === 
-The kernel component of the Synchronet FOSSIL driver for Microsoft Windows 95-based operating systems (**no longer supported**) is called ''sbbsexec.vxd'' and it is loaded when needed by Synchronet automatically. This FOSSIL driver is not actively maintained but has worked well for many sysops and their BBSes for many years. This FOSSIL driver implements the FOSSIL interface only (i.e. does not emulate a physical UART or COM port), so the doors must support and be configured to use FOSSIL interrupts for input and output. +The kernel component of the Synchronet FOSSIL driver for Microsoft Windows NT-based operating systems is called ''[[faq:win#sbbsexecdll|sbbsexec.dll]]'' and it is loaded when needed by Synchronet automatically if/when [[faq:win#win64|NTVDM]] is enabled((NTVDM is normally only available 32-bit/x86 editions of Windows)).
- +
-=== Windows NT === +
-The kernel component of the Synchronet FOSSIL driver for Microsoft Windows NT-based operating systems (this includes XP, Vista, and Windows 7/8/10) is called ''[[faq:win#sbbsexecdll|sbbsexec.dll]]'' and it is loaded when needed by Synchronet automatically.+
  
 This FOSSIL driver is also a //virtual UART// driver so that external DOS programs that require COM/UART access for input and output (i.e. do not support FOSSIL), can still be used on the BBS. When supported, doors should be configured to use a FOSSIL interface instead of COM/UART for input and output (for better performance and compatibility). This FOSSIL driver is also a //virtual UART// driver so that external DOS programs that require COM/UART access for input and output (i.e. do not support FOSSIL), can still be used on the BBS. When supported, doors should be configured to use a FOSSIL interface instead of COM/UART for input and output (for better performance and compatibility).
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 ==== Internal Code ==== ==== Internal Code ====
  
-Enter a short (8 characters or less), unique name for the program which Synchronet will use for internal reference purposes.+Enter a short (up to 16 characters), unique name for the program which Synchronet will use for internal reference purposes.
  
 The chosen internal code may not be the same as any other installed external program. The chosen internal code may not be the same as any other installed external program.

Trace: • Install Doors