[wolkow70]

sawe,
Слелал по вашему варианту с UAC_v0.2.2d.
Не компилируется.

Function: ".OnInit"
Invalid command: UAC::RunElevated
Error in script "D:\NSIS\kmplayer-new.nsi" on line 107 -- aborting creation process
Такое впечатление, что он плагина не видит.

Если добавляю :

Function .OnInstFailed
UAC::Unload ;Must call unload!
FunctionEnd
;
Function .OnInstSuccess
UAC::Unload ;Must call unload!
FunctionEnd

то показывает:

Function: ".OnInstFailed"
Invalid command: UAC::Unload
Error in script "D:\NSIS\kmplayer-new.nsi" on line 95 -- aborting creation process

И еще, что бы это значило (из справки):

This plugin has been tested under the following environments:
Windows 7 - UAC On - Administrator
Windows Vista - UAC On - Administrator
Windows Vista - UAC Off - Administrator
Windows Vista - UAC On - Standard User - User supplies administrator info into the UAC dialog
Windows Vista - UAC On - Standard User - User does not supply administrator info into the UAC dialog
Windows Vista - UAC Off - Standard User - User supplies administrator info into the Run As dialog
Windows Vista - UAC Off - Standard User - User does not supply administrator info into the Run As dialog