The big change software change is installing Windows XP SP2
, which may have affected existing context menus which is why Brett's suggestion to troubleshoot the problem by turning some of them off use shellexview is a great idea.
Windows XP SP2
affects poorly written software by enabling Data Execution Prevent. You could turn off Data Execution Prevention (DEP) for explorer.exe to see if that changes your problem. However, if it does work, I would suggest enabling it and then finding which shell extension is poorly written.
The following is a cut and Paste from Help and Support.
Start \ Help \ Search and then type: DEP
To turn Data Execution Prevention on or off for a program
If you turn off Data Execution Prevention (DEP) for a specific program, it might become vulnerable to attack. A successful attack could then spread to other programs on your computer, to your contacts, and damage your personal files. If you suspect that a program does not run correctly when DEP is turned on, check for a DEP-compatible version or update from the software publisher before you change any DEP settings.
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings might also prevent you from completing this procedure.
1. To open System Properties, click Start, click Control Panel, click Performance and Maintenance, and then click System.
2. Click the Advanced tab and, under Performance, click Settings.
3. Click the Data Execution Prevention tab.
4. In the Turn on DEP for all programs and services except those I select list, do one of the following:
To turn off DEP for a program, select the check box next to the program name and click OK. (If the name of the program doesn't appear in the list, click Add, navigate to your Program Files folder, select the program's executable file which will have an .exe file extension, and click OK).
– or –
To turn on DEP for a program, clear the check box next to the program name, and then click OK.