uninstall problem

i've a problem . i use this code for install;

code:


Section 		"Entalpi Video Org." 		SecEvo

	

		SetOutPath 	"$SYSDIR"

		

		File 		"EvoVfW.dll"

		File 		"Evoc.ax"

		

		RegDll 		"$SYSDIR\Evoc.ax"

		

		WriteRegStr 	HKLM 	"SYSTEM\CurrentControlSet\Control\MediaResources\icm\vidc.evoc" 	"Description" 	"Entalpi Video Org. Codec"

  	WriteRegStr 	HKLM 	"SYSTEM\CurrentControlSet\Control\MediaResources\icm\vidc.evoc" 	"Driver" 	"EvoVfW.dll"

  	WriteRegStr 	HKLM 	"SYSTEM\CurrentControlSet\Control\MediaResources\icm\vidc.evoc" 	"FriendlyName" 	"Entalpi Video Org. Codec"



SectionEnd



Section 		"NutraPlus Video" 		SecNPV

	

		SetOutPath 	"$SYSDIR"

		

		File 		"NpvVfW.dll"

		File 		"Npv.ax"

		

		RegDll 		"$SYSDIR\Npv.ax"

		

		WriteRegStr 	HKLM 	"SYSTEM\CurrentControlSet\Control\MediaResources\icm\vidc.evoc" 	"Description" 	"NP Codec"

  	WriteRegStr 	HKLM 	"SYSTEM\CurrentControlSet\Control\MediaResources\icm\vidc.evoc" 	"Driver" 	"NpvVfW.dll"

  	WriteRegStr 	HKLM 	"SYSTEM\CurrentControlSet\Control\MediaResources\icm\vidc.evoc" 	"FriendlyName" 	"NP Codec"

		

SectionEnd

i installed only one section with my setup binary and the other one with original programm binary.

if i uninstall with uninstaller of my binary it deletes all files and registry keys.

how can i fix this problem?

[kichik]

Not much can be said without seeing your uninstaller code.