REGEDIT4
 
[HKEY_CLASSES_ROOT\.rm]
"PerceivedType"="video"
"Content Type"="video/realmedia"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Multimedia\WMPlayer\Extensions\.rm]
"Runtime"=dword:00000007
"Permissions"=dword:0000000f
"UserApprovedOwning"="yes"
 
[HKEY_CLASSES_ROOT\.rmvb]
"PerceivedType"="video"
"Content Type"="video/realmedia-VB"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Multimedia\WMPlayer\Extensions\.rmvb]
"Runtime"=dword:00000007
"Permissions"=dword:0000000f
"UserApprovedOwning"="yes"