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- From: ghoffman@digi.lonestar.org (Gene Hoffman)
- Newsgroups: comp.sys.ibm.pc.misc
- Subject: PKZIP V3.05 problems
- Message-ID: <1993Jan4.184516.3492@digi.lonestar.org>
- Date: 4 Jan 93 18:45:16 GMT
- Organization: DSC Communications Corp, Plano, TX
- Lines: 66
-
- Do NOT use PKZIP V3.05!
-
- I downloaded the file from a bulletin board. It was packaged as a self
- extracting EXE. The documentation was very good, appearing as if it was a
- legitimate release. I ran the latest McAfee SCAN on it. No virus was
- detected. I ran some preliminary tests, comparing the size of the compressed
- file with that generated by the current official version of PKZIP (V1.1) and
- the size of the compressed file generated by other compression utilities. The
- utility seemed to be performing as advertised, so I copied the file to a floppy
- and also installed it on my notebook PC.
-
- The next evening, when I powered up my desktop PC, I was not able to boot from
- the C: drive. The ROM startup messages were displayed, but then the system
- hung. No error messages were displayed or beeps sounded. I checked the setup
- (AMI BIOS) and found that everything was correct. Just to check, I selected
- the option which forces the factory defaults. No help. If, however, I booted
- from the A: drive, I could successfully access the C: drive.
-
- My desktop PC is a no-name 486 DX50. The unit was still under warranty, so I
- took it to the shop. The technician reported that the problem got worse while
- he was working on the PC - such that he could no longer boot from the A: drive.
- They fixed the problem by replacing the motherboard.
-
- The next day a co-worker (who had also run PKZIP V3.05) reported that he had
- the same problem - that he could no longer boot from his C: drive, but that
- everything seemed OK if he booted from his A: drive. His desktop PC is also a
- no-name 486 clone. In his case, the technician reported that the disk
- controller was bad.
-
- My laptop (Toshiba 2200SX) at first appeared to not have any problems. I could
- successfully boot from the C: drive. However, I later found COM problems. I
- regularly use PROCOMM Plus to connect to a minicomputer. I use a direct
- connect, thus there are not any modem restrictions. I have regularly run at
- 38.4 KB with no problems.
-
- Now, however, I am unable to successfully operate at any rate above 2400. The
- UART appears to be randomly tossing characters. Screen displays which normally
- are lined up in columns are now scattered, with characters missing. Also I can
- not successfully download files using ZMODEM protocol. The download aborts
- almost immediately due to errors.
-
- I emphasize that these problem occur only if I have booted from the hard disk.
- If I boot from a floppy, there are no problems. The floppy contains identical
- versions of AUTOEXEC.BAT and CONFIG.SYS. I have verified that the hidden
- system files (IBMIO.COM and IBMDOS.COM) are identical. The BIOS settings are
- correct. In either case, the PROCOMM software is run from the hard disk. I am
- not running a separate version from a floppy when it works.
-
- I'm told that the tech's preliminary report for the laptop was that he could
- not find any problem. This is the holidays, and I didn't get to talk to the
- tech, so I asked them to be sure that they had booted from the hard disk, per
- the detailed symptom sheet I'd submitted. I don't have an update on this.
-
- First, I'd suggest that you take this as a definite warning NOT to use PKZIP
- V3.05. I called PKWare, hoping they could give me some insight into the
- problem. All they would say is that V3.05 is definitely a "hacked" version.
-
- I've seen a few net messages about PKZIP V3.05, but none reported any hardware
- problems. Please report any experience you've had, and any explanations for
- the problems. I didn't think software could cause hardware problems, but
- my recent experience seems to state otherwise.
- --
- ----------------------------------------------------------------------------
- Gene Hoffman ghoffman@digi.lonestar.org OR digi!ghoffman@uunet.uu.net
- DSC Communications Corporation Addr: MS 121, 1000 Coit Rd, Plano, TX 75075
- ----------------------------------------------------------------------------
-