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- REMM.SYS 4.X AND DESQVIEW 2.XX
-
- Users of DESQview 2.01 (or above) may experience system lock-up when using a
- version of REMM.SYS of 4.10 (or above). The lock-up occurs when running an
- interrupt-intensive application such as a serial communications program.
-
- The reason that this particular combination causes this symptom lies in the
- fact that the LIM 4.0 functions are being executed in software, requiring a
- large amount of processing time. This amount of overhead becomes critical
- when processing time must also be devoted to servicing the stream of
- interrupts generated by a communications program. Any application that must
- devote a great deal of time to both expanded memory operations and serial
- communications will eventually be unable to keep pace and cease to function.
-
- It is recommended that those users who operate in this environment and
- experiencing problems, replace the 4.xx version of the REMM.SYS driver with a
- 3.xx version. For AST Systems products, version 3.50 of REMM.SYS is
- recommended. For AST board-level expanded memory products version 3.10 of
- REMM.SYS will operate in this environment.
-
- Those users with expanded memory hardware which fully supports the LIM 4.0
- Specification, (i.e., AST RAMpage Plus/286 or AST Premium/286 using Advanced
- FastRAM), will not experience any of the difficulties outlined here.
-
- Please note: It advisable to verify that the correct DESQview configuration
- and operation procedures are followed. Appendix E in the DESQview Manual
- contains detailed information about running communications programs.
-