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- LDFILTER
-
- Description:
-
- LDFILTER.COM is provided to correct some possible problems in
- the handling of programs that use of the EXEC function. The
- EXEC function is the function that may be called by a program to
- run a sub-program and then exit back to the main program. A
- well known example of a program that uses the EXEC function (but
- does not require LDFILTER) is the Lotus program ACCESS.COM which
- provides a menu for 123.EXE and its utility programs. Versions
- of DESQview released after version 1.30 will probably
- incorporate the functions of LDFILTER internally and therefore
- make its use unnecessary.
-
- Identifying a possible need for LDFILTER:
-
- The typical scenario is like this: You are running a program
- that has several executable modules (sometimes identified by the
- presence of many EXE or COM files in the program directory).
- The program loads a main module and provides a menu from which
- you can elect to run the other modules. The program runs fine
- when on the main menu and you can select one of the modules and
- while in that module, the program runs fine. However, when you
- exit back to the main menu, the program hangs or seems crippled.
- After first determining that the program is operating with
- sufficient memory, try using LDFILTER.
-
- Installing LDFILTER:
-
- LDFILTER should be loaded from a batchfile in the DESQview
- window, before running the target program. After creating the
- batchfile, run Change a Program, select your application and make
- the "Command to Start Program" the name of the batchfile and turn
- off the Option "Close on Exit to DOS".
-
- Example of Batchfile:
-
- LDFILTER <- Loads in the filter.
- progname <- Place command to start your program here.
- EXIT <- This will close the window.
-
-
- Programs that may require LDFILTER:
-
- Programs compiled with Microsoft QuickBASIC version 2.0 or
- Microsoft C version may require the use of LDFILTER if they use
- the EXEC function.
-
- Specific commercial programs identified: