Windows XP SP3 Compatibility Issues

Installing Windows XP SP 3 might cause your anti-malware applications to detect the presence of Trojans and keyloggers that actually aren’t there.
As In the case of Spyware Doctor, PC tools’ popular antispyware program that detects Trojan-Spy.Pophot.WX in RunDLL32.exe even though in fact the system is uninfected. RunDLL32.exe is a system file that Windows need to run code in dynamic link library (DLL) files.
By default, Spyware Doctor prevents any files it recognizes as infected from running. If an important system file such as RunDLL32.exe is flagged incorrectly, the result can be terrible for your computer. For example, users may be blocked from opening Windows Control Panel or using System Restore, among other operations, an endless loop of scanning to remove the file, rebooting, finding the file again or even misleading users into reinstalling XP .
PC Tools Forum Moderator, Anthony Chen claims that they are implementing a fix immediately. For Spyware Doctor users, he advises customers to add RunDLL32.exe to the global action list manually. Until a fix is available from PC Tools
The workaround consists of the following steps:
- Step 1. In the Spyware Doctor window, click the Settings button on the left.
- Step 2. Click Global Action List to the right of that.
- Step 3. At the bottom of the window, click Add.
- Step 4. In the New Rule dialog box, choose “File on disk” from the “Select data type” drop-down list.
- Step 5. To the right of the text box below, click the … button to browse for a file. Find and select RunDLL32.exe in the Windows\System32 folder.
- Step 6. Make sure to select “Always allow” in the drop-down list at the bottom and click the Add button.
There are some complain from customers regarding Windows SP3 compatibility problems,
If you care about the effect the collection of patches that comprise XP SP3 will have on your PCs, wait a while before downloading and installing the Microsoft’s latest (and last) service pack for Windows XP.
You might want to check vendors support sites of your most important products for compatibility issues with SP3.
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