I tried www.microsoft.com - support and found this:

SYMPTOMS
When you attempt to start Links LS 1998 edition, you may receive the following error 
message: 
This program has performed an illegal operation and will be shut down. If the problem 
persists, contact the program vendor. 
CAUSE
This behavior can occur if an incompatible microprocessor is installed in your computer. 
RESOLUTION
To resolve this issue, download and install the Version 1.35 Update for Links LS 
98 (Upd135.exe) from the Microsoft Download Center.
The following file is available for download from the Microsoft Download Center:
Upd135.exe
Release Date: Jun-22-1999

For additional information about how to download Microsoft Support files, click the 
following article number to view the article in the Microsoft Knowledge Base: 
119591 How to Obtain Microsoft Support Files from Online Services 
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection 
software that was available on the date that the file was posted. The file is stored 
on security-enhanced servers that help to prevent any unauthorized changes to the 
file. 
STATUS
Microsoft has confirmed that this is a problem in Links LS 1998 Edition. 
MORE INFORMATION
The Upd135.exe file updates your version of Links LS 98 to version 1.35. 
See if this helps.  Microsoft patchwork solutions is your friend.






On Thursday, January 30, 2003 at 4:11 am, adrian wrote:
>i have a message  come up after awhile about my program performing an illegal operation 
>amd will be shut down-please contact the vendor-what can i do about it-im desperate

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