Article ID: 98345 - View products that this article applies to.
This article was previously published under Q98345
The MS-DOS 6.0 DoubleSpace disk-compression utility executes some floating point (non-integer math) calculations and therefore may attempt to use a math coprocessor (80x87 or equivalent) if one is present. If a machine's numeric processing system is substandard or compromised due to the presence of device drivers, TSRs, or faulty hardware, DoubleSpace may either report inaccurate time estimates for completion or fail and generate the following errors:
NOTE: In some cases, no runtime error(s) are displayed, and DoubleSpace stops responding (hangs) early in the compression process.
IMPORTANT: Since DoubleSpace has detected a potential problem with your system, perform a full system backup or make sure you can fully restore the machine from removable media before you proceed with these steps.
Use the following steps to troubleshoot DoubleSpace R6002 errors:
In the case of 286, 386, and 486 SX machines, try removing the coprocessor for testing purposes. If the machine is a 486 DX, verify that the system's ROM BIOS is current and specifically designed for use with a 486 DX, not a 386 or 486 SX.
In rare cases, incorrect CMOS or system board DIP switch settings, faulty system RAM, or other hardware problems may cause R6002 errors. Contact your system vendor or manufacturer to verify the CMOS and DIP settings are correct. If the error persists, remove all system components not absolutely required to operate the machine (optional I/O adapters and so forth), use replacement parts (in the case of system RAM), or have the machine inspected by a hardware repair technician.
Article ID: 98345 - Last Review: December 23, 1999 - Revision: 1.0
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.