Mscdex driver in

Do you have a start up disk or a boot disk? Murf Murphy's Law - it will go wrong, but we can fix it!! October 22nd, , PM 3. Murph is providing the easy way. And certainly your best option if you didn't preserve your CD-Rom driver files or old autoexec or config files that reference your CD-Rom language to enable the drivers. Older Win95 didn't do that for you when making Start Up boot disks, as Win98 now will. You can get around that next time by manually adding a copy of mscdex.

But if you want the long way, and desire to use the drivers associated with your CD instead of universal drivers, here's what to look for; or consider it FYI, for the next time If you had the foresight to print any autoexec. The above assumes I had a folder on the c drive named "cdrom", and put the driver file mtmide VTOC for that drive letter into the buffer space provided. The bibliographic.

Carry will be set if the drive. ES:BX Transfer address; pointer to a byte buffer. DX Sector index. This function is provided to scan the Volume Descriptors on a disc. A sector. If there is no error, then AX will return 1 if the volume descriptor read. If there is an error in processing the request, the Carry Flag will be set. These will be either. BX Debugging function to enable. This is used for development and is reserved.

It will be non-functional in. BX Debugging function to disable. DX Number of sectors to read. SI:DI Starting sector.

This function corresponds to INT 25h. It will be converted directly into a. DX Number of sectors to write. This function corresponds to INT 26h. It is not supported at this time and. It is intended to be used by authoring systems. BX Signature word. If the extensions are installed, BX will be set to. AX is set to zero if the drive is not supported. One must be. BH contains the major version number and BL contains the.

Values returned are binary. For example, BX would contain. This function does not work on versions earlier. The buffer must be large enough to hold a list of drive letters. The buffer. There are a maximum of 26 drive letters. Device List. CD-ROM drive letters may sometimes be. Note the network drive occupies. Asking for the number. ES:BX must point to a buffer that is at least 3 bytes long. BX 0 - Get Preference.

This behavior can be altered for each individual. Carry will be set, AX will be set to. Otherwise DX will contain the. If BX is anything other. ES:BX Pointer to buffer with null-terminated path name. SI:DI Pointer to buffer to copy directory record information. AX 0 is returned if the disc is High Sierra, 1 is returned if the.

The pathname expected is a null-terminated string e. The path must consist only of. The buffer to copy the directory record to can be a maximum of bytes. The directory record is a direct. Carry will be set and an error code returned if there were problems with the. The format of the directory record for High Sierra discs is:.

The format of the directory record for ISO discs is:. The difference between the two forms is the file flag byte moved to account. Note that the C structs above are. Send Device Driver Request. It is highly recommended that all applications. The format of. LAN, it is not as easy as it should be. Because each LAN implementation takes a different. This document should help clarify the present situation and help get you.

LAN support may range from very simple and inexpensive to. At present, there are three products. These are:. Online Opti-Net. Choosing which product depends on your LAN and your needs.

This is possible. LAN servers like this, that do not make assumptions. Unfortunately, these products do not access. Although the server. By including this parameter on the.

Contact Meridian Data and Online for information for these networks as they. Online offers one potential configuration for computer systems that do not. The workstation operates as above. This allows a network of. This option. This indicates that the character. All discs are required by ISO-. In addition, there is an accompanying program SVD that can be used to change. Running SVD with no arguments will report the current settings. Including a.

CD-ROM is the first of what will probably be several alien file structures. Choice of Filename Characters. When the software looked for file. Sierra filenames and during High Sierra premastering, the file was renamed. Valid High Sierra filename characters are the letters 'A' through 'Z', the. All other.

Note that the letters 'a' through 'z' are not. Under DOS,. When choosing file name characters, keep in mind. The High Sierra format allows for pathnames to be up to 8 levels deep. The High Sierra format allows for the entire pathname to be a maximum of The length of path.

This is not a concern here but is discussed. As a rule, try to keep the. For example, the Microsoft Multiplan Demo. In order to avoid this problem, try to provide another means of letting the. Many applications check. Most people understand this convention now or. As a rule, for both temporary and permanent files, if a file creation error.

The last thing that should happen is for work to be lost. Don't depend on the format of data on the disk. Do not talk to any media at a physical. For performance reasons, try to keep directory sizes smaller than about Much beyond this and directory files grow beyond one byte. Typically this is not a problem but if the number of sector buffers.

For certain pathological programs, such as certain implementations of the. Xenix utility find, the penalty is about 1 second per directory sector that.

If the directory is large, say 8. This is accomplished by growing the. There is a balance between having too many directories and too many files in. Keep this in mind when laying out your files. Since the penalty for using a file in the lowest sub-directory instead of. This will help avoid problems of flushing the disc sector cache.

Try to keep. Close proximity will reduce seek time when accessing related. Many people are interested in providing updates to files that are contained. They would like to create a directory on their hard disk. Unfortunately, by the time the Extensions.

For this reason, it's a good idea to have your path set so that it looks. Another good strategy is to copy. Also, have the application software itself search. This way both software updates and updated or commonly used database files. Try to avoid relying on the operating system to be part of your search. If your database is broken up into a hierarchy and your order is. Usually the time involved in doing this on a hard disk is not large but on a.

CD-ROM, the search times can add up. Opening a file can be an expensive. Whenever this can. The strategy used by Microsoft Bookshelf was to lump the entire database. Bookshelf uses packed b-trees with each node holding as. Combining databases avoids the extra overhead of repeatedly opening and. Caching as much of the indexes in memory as possible.

In general, identify your software bottlenecks and through judicious use of. One of the advantages of the High Sierra format is data interchangeability.

One must take care to chose a subset of the. Be aware that if one of. Most of the following caveats apply to the present version of the Microsoft. Future versions of the extensions are expected to support. Make sure that your disc is in valid High Sierra format. Nothing is. Surprisingly enough, we have. In almost every case, the Extensions. In addition to running validation software to verify the High Sierra image,.

Unfortunately, it may not. Please report any and all problems you think are in the. Extensions to Microsoft so that they can be fixed. Pathtable and Directory Sizes.

This bears repeating because many people have gotten it wrong. Path table sizes are always the exact number of bytes that are contained in. You must not have. The directory sectors always begin on a. MS-DOS cannot handle longer than 8.

If this happens, two. For example:. Kanji filenames are also limited to 8. Only shift-. To get kanji, you must specify a. Microsoft to find out how this is done.

In the present version, the Extensions do not support interleaving so if the. Interleave size and Interleave factor are non-zero, the file will ignore. Multi-extent files are not supported in the present version. Each extent of. Multi-volume disc sets are not supported in the present version. Only one coded character set or supplementary volume descriptor is. This is for shift-Kanji.

Version numbers are not supported by the Extensions. The Extensions will. Two files with the same name and different version numbers have. If the protection bit is set in the. At present, the Extensions ignore the contents of any XAR record.

Motorola Format Tables. The additional copies of the path table and any values in "Motorola" format. They should. Multiple Copies of the Path Table. The Extensions presently only read and use the first copy of the path table. Later versions may check to see that copies of the path table agree. Additional Volume Descriptor Records.

Boot records and Unspecified volume descriptors are ignored. The first. Additional copies. The directory bit for High. Files with the. Using files with these bits set will have undefined. Unique Volume Identifiers.

It is highly recommended that the volume identifier be unique. Extensions use the volume identifier to do volume tracking and to double-. The more chance that users will have. It is also highly recommended that application programs use the volume label. DOS is obtained from the volume identifier field in the primary volume. The call to get the volume label is very inexpensive to make.

This is the best way for an application to. The application. As a rule, it is better to have many small directories that contain fewer. The answer depends on your. Reading further will help explain. What makes the difference? For each file open, suppose you have On the other hand, you could have 1 directory.

On average, each file open in this large directory about. As long as it is very inexpensive to get to each directory through the. Further improvements can be made by grouping files that are related and will. Putting each file in a. There is a limit though to how many subdirectories you may want because if. If you have a pathtable that is Sound Tab 2: No problems found.

Sound Tab 3: No problems found. Sound Tab 4: No problems found. Music Tab: No problems found. Input Tab: No problems found. Network Tab: The registry information for the DirectPlay application 'Invictus' is missing or damaged.

You should reinstall that application. SYS Driver Version: 4. Also, I have run Spybot and Adaware and Jutland would not run. Joined Aug 15, Messages 5, That might help a little bit Joined Mar 25, Messages 5. Joined Mar 28, Messages 2.

Try changing the comapatibility to The operating system is already Windows Couriant James. Joined Mar 26, Messages 42, I copied the entire contents of the game to the hard drive, but in the middle of the install, the install stopped and displayed a message that the output drive cannot be the same as the input drive.

Joined Nov 2, Messages 1. Did you ever get this to work on your system? I am also trying to get this to work cuz it was a great game back in the day! Joined Jul 28, Messages 7. Jutland by Software Sorcery Beautiful looking realtime Naval Sim, but very difficult to get running.

This may require that the EDIT command is present in the root directory or in a directory in the path or on a boot disk. Note that the EDIT. EXE as an editor, so that file must be present as well. You may need to create this directory and copy the driver to it. Also, this string cannot be a directory or file name. EXE is present there.