diff --git a/api.md b/api.md
index e6915d0..fa1aab9 100644
--- a/api.md
+++ b/api.md
@@ -68,13 +68,15 @@ Requires `ReplaceIM` permission.
 
 Unimplemented. Send a message (`bstrIM`) as if written by the user through the channel.
 
-### window.external.Channel.SendFile(pdFileInfo: FileInfo)
+### window.external.Channel.SendFile(pdFileInfo: FileInfo*)
 
 Requires `SendFile` and `ActiveX` permissions.
 
+Returns the `pdFileInfo` object.
+
 Unimplemented. Send a file from the local client's storage device through the Channel.
 
-### window.external.Channel.CancelSendFile(aFileInfo: FileInfo)
+### window.external.Channel.CancelSendFile(aFileInfo: FileInfo*)
 
 Requires `SendFile` and `ActiveX` permissions.
 
@@ -92,6 +94,8 @@ Technical: Called by a beforeunload handler in messenger.js.
 
 ### Channel_OnDataError
 
+Accepts parameter `pdispError`: {"Type": long, "Data": string}.
+
 Triggered if a `window.external.Channel.SendData()` were to fail on the local client.
 
 The local client should handle the Error object in `window.external.Error`:
@@ -101,22 +105,30 @@ The local client should handle the Error object in `window.external.Error`:
 
 ### Channel_OnDataReceived
 
+Accepts parameter `vData`: string.
+
 Triggered after the remote client calls `window.external.Channel.SendData()`.
 
 The local client should handle the data given in `window.external.Channel.Data` as a string.
 
 ### Channel_OnFileProgress
 
+Accepts parameter `pdispFile`: FileInfo.
+
 Unimplemented. Only fired if Activity has `SendFile` permission.
 
 Triggered after data has been sent over the channel to the remote client regarding a file transfer.
 
 ### Channel_OnFileReceived
 
+Accepts parameter `pdispFile`: FileInfo.
+
 Unimplemented. Only fired if Activity has `SendFile` permission.
 
 Triggered after a file transfer to the local client is received.
 
+The local client should handle the data given in `window.external.Channel.File` as a FileInfo.
+
 ### Channel_OnIMReceived
 
 Unimplemented. Only fired if Activity has `ReceiveIM` permission.
@@ -139,15 +151,19 @@ Triggered when the remote client's Activity window has fired `window.external.Ch
 
 ### Channel_OnSendFileCancelled
 
+Accepts parameter `pdispFile`: FileInfo.
+
 Unimplemented. Only fired if Activity has `SendFile` permission.
 
 Triggered when a file transfer is cancelled by either client.
 
 ### Channel_OnTypeChanged
 
+Accepts parameter `eConnectionType`: number.
+
 Triggered when the connection type changes.
 
-The local client can see the new connection type by getting `window.external.Channel.Type`, which provides these values:
+The local client can see the new connection type by getting `window.external.Channel.Type` (or `eConnectionType`'s value), which provides these values:
 
 0: Direct connection, Switchboard connection exists, but the local client has a direct connection to the remote client.
 
@@ -155,6 +171,13 @@ The local client can see the new connection type by getting `window.external.Cha
 
 2: Disconnected, No connection to the remote client.
 
+### Channel_OnIMSent
+
+Accepts parameter `bstrIM`: string.
+
+Unimplemented. Triggered when the local client has sent an Instant Message. The `bstrIM` parameter contains the IM text.
+
+Originally introduced in client version 6.2.
 
 # Other objects