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"Exception Error 12" - Expanded Memory Manage |
The information in this document applies to:
WordPerfect® 5.1 for DOS
Problem
Solutions: FYI: Users may receive an "Exception Error 12" error message when running not only in WordPerfect but in many other programs--even in DOS. The error message is generated by the Expanded Memory Manager, QEMM. Quarterdeck said that DTK computers have a hidden RAM cache that conflicts with the upper memory areas. Therefore, customers may want to try loading QEMM with an EXCLUDE D000-DFFF startup option. Please note: The above information is true for any AT computer which contains the DTK BIOS; however, the startup option may cause problems for customers who have D000-DFFF HEX as address space for the expanded memory page frame. Therefore, any AT computer which displays this error message should be configured for a 64K address and should exclude the remaining upper memory block (UMB). For example: DEVICE=EM.SYS FRAME=E000 EXCLUDE=A000-DFFF or DEVICE=EM.SYS FRAME=D000 EXCLUDE=A000-CFFF EXCLUDE=E000-FFFF |
Answer:
Details:
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