Thank you Robin Walker for fixing the update problem in
Microsoft's Anti-Spyware (lastest BETA version). I went
and located the gcUnCompress.dll as was explained by you
and have no problems updating, as of now! I followed the
instructions re-pasted below my message and wa la. No
more problems! Thank you!
A Happy Microsoft Client
*************
The correct version is of length 95,448 bytes.
To update your system to install the correct version of
the file, do the
following:
1. In the System Notification Area, right-click on the
MSAS icon and select
"Shutdown Microsoft AntiSpyware".
2. In Explorer, navigate to C:\WINDOWS\SYSTEM32\, locate
the file
"gcUnCompress.dll", right-click on it, and
select "Delete".
3. In Control Panel "Add or Remove Programs",
select "Microsoft
AntiSpyware"
and click button "Change".
4. Click "Next".
5. Select "Update Microsoft AntiSpyware", click "Next".
6. Click "Install".
7. When the re-installation finishes, click "Finish".
8. In Explorer, in folder C:\WINDOWS\SYSTEM32\, check that
"gcUnCompress.dll" is now 95,448 bytes long, by right-
clicking it and
selecting "Properties".
9. Launch MSAS, pull down the File menu and select "Check
for updates" -
this time it really will update your definition files to
the latest version.
10. In Explorer, open the folder C:\Program
Files\Microsoft AntiSpyware,
and
satisfy yourself that the modification dates of the three
definition files
have changed:
gcDeterminationData.gcd
gcThreatAuditThreatData.gcd
gcThreatAuditScanData.gcd
Done!
*******************
-----Original Message-----
It is unbelieveable MS has not fixed the definition
updater even though this has been an ongoing problem for
weeks!! What is their (MS) problem?
The problem, however, has been solved by one of the MVP-
s, Robin Walker. He has found, that the decompressing
library for updates appears to be
improper. Here is his solution (for MSAS verion 1.0.6xx):
"After much debugging, I have found that the problem with
definition update failures and repetition is because of
an incorrect version of the file
gcUnCompress.dll in C:\WINDOWS\SYSTEM32\ (for XP) or
C:\WINNT\SYSTEM32\ (for 2000 or systems upgraded from
2000).
The incorrect version is of length 130,272 bytes.
The correct version is of length 95,448 bytes.
To update your system to install the correct version of
the file, do the
following:
1. In the System Notification Area, right-click on the
MSAS icon and select
"Shutdown Microsoft AntiSpyware".
2. In Explorer, navigate to C:\WINDOWS\SYSTEM32\, locate
the file "gcUnCompress.dll", right-click on it, and
select "Delete".
3. In Control Panel "Add or Remove Programs",
select "Microsoft AntiSpyware" and click button "Change".
4. Click "Next".
5. Select "Update Microsoft AntiSpyware", click "Next".
6. Click "Install".
7. When the re-installation finishes, click "Finish".
8. In Explorer, in folder C:\WINDOWS\SYSTEM32\, check
that
"gcUnCompress.dll" is now 95,448 bytes long, by right-
clicking it and selecting "Properties".
9. Launch MSAS, pull down the File menu and select "Check
for updates" - this time it really will update your
definition files to the latest version.
10. In Explorer, open the folder C:\Program
Files\Microsoft AntiSpyware, and
satisfy yourself that the modification dates of the three
definition files have changed:
gcDeterminationData.gcd
gcThreatAuditThreatData.gcd
gcThreatAuditScanData.gcd
Done!
You won't ever have to manually install the definition
files again, nor will the update keep repeating every
time you try."
