Msconfig (system configuration utility) replacement

Msconfig is part of Windows and allows you to disable startup programs, but it cannot be used to add or edit them.

You can run system configuration utility:
In Windows XP:

Go to Start > Run

Type MSCONFIG in the "Open:" box and then click on the OK button.
In Windows Vista/7:

Click on the Vista/7 start icon in the bottom left corner of your screen.

Type MSCONFIG in the search box and then press enter on your keyboard.

Chameleon Startup Manager is a startup control panel that enables the full customization of startup programs, including startup order change, startup delay, priority and much more.

More details can be found here.

Unlike msconfig, Chameleon Startup Manager has advanced features:

Working in Windows Vista/7 without UAC prompts
You can start programs with administrator permissions without confirming the privileges

Applying configurations 'on-the-fly' without restarting Windows
Necessary programs can be run and unnecessary programs closed using one button without reloading Windows

Black list
Just disable the program once and it will no longer add itself to the startup list

Monitor real time changes in the startup list
There is immediate notification of added startup programs

Change startup order by specifying a startup delay
It can be changed visually or by using the wizard

Select the startup configuration at Windows start-up
During Windows startup, it is possible to select the programs to be launched by selecting one of the Windows startup configs saved earlier (eg, for the Internet, for games, etc)

Start programs after another program is launched (also with a delay option)

Selecting on what days should programs be run

Possibility to restore all changes
Automatically save the history of changes in configurations and for each program

Possibility to сancel any changes
Any removal, addition or change in the program settings will be cancelled

Setting the startup priority

Startup configurations management
Any number of Windows startup configurations can be created and loaded if necessary

Allow to add, edit, disable and remove startup programs

Virus check
You can check any program in 40+ antivirus programs
However, we do not guarantee that this will work as it depends on the third-party service