Hi
Rohit,
The error "reader_sl.exe" refers to "speed launcher"" is essentially a program that preloads certain components of another program so that if the program is needed later on, it will load more quickly. This one is for Adobe Reader, which lets you read Acrobat (PDF) files either independently or within your browser.
I would like to know some information about the issue, so that we could assist you further with this performance issue.
- Did the issue start recently?
- Have you made any changes to the computer prior to this issue?
I would suggest you to place the computer in Clean Boot and check which app/program is causing this issue.
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7:
http://support.microsoft.com/kb/929135
Note: After clean boot troubleshooting step, follow the section "How to reset the computer to start as usual after troubleshooting with clean boot" in the provided link to return your computer to Normal startup mode.
Please reply with more information about the issue, so that we could help you better.