diff --git a/patches/dmime-PChannel-range/0001-dmime-Ensure-Channels-are-in-range-before-assignment.patch b/patches/dmime-PChannel-range/0001-dmime-Ensure-Channels-are-in-range-before-assignment.patch
new file mode 100644
index 00000000..284ddb4d
--- /dev/null
+++ b/patches/dmime-PChannel-range/0001-dmime-Ensure-Channels-are-in-range-before-assignment.patch
@@ -0,0 +1,45 @@
+From 6a4d40b86f94703f8c37264739fffc4885507ebf Mon Sep 17 00:00:00 2001
+From: Alistair Leslie-Hughes <leslie_alistair@hotmail.com>
+Date: Tue, 17 Sep 2019 16:21:22 +1000
+Subject: [PATCH] dmime: Ensure Channels are in range before assignment.
+
+Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=17766
+Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=24740
+---
+ dlls/dmime/performance.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/dlls/dmime/performance.c b/dlls/dmime/performance.c
+index 6e4dae6be7..3bbbb3b853 100644
+--- a/dlls/dmime/performance.c
++++ b/dlls/dmime/performance.c
+@@ -34,7 +34,7 @@ typedef struct IDirectMusicPerformance8Impl {
+     float fMasterTempo;
+     long lMasterVolume;
+     /* performance channels */
+-    DMUSIC_PRIVATE_PCHANNEL PChannel[32];
++    DMUSIC_PRIVATE_PCHANNEL PChannel[256];
+     /* IDirectMusicPerformance8Impl fields */
+     IDirectMusicAudioPath *pDefaultPath;
+     HANDLE hNotification;
+@@ -624,6 +624,9 @@ static HRESULT WINAPI IDirectMusicPerformance8Impl_AssignPChannelBlock(IDirectMu
+ 	FIXME("(%p, %d, %p, %d): semi-stub\n", This, dwBlockNum, pPort, dwGroup-1);
+ 	if (NULL == pPort) return E_POINTER;
+ 
++	if (dwBlockNum > ARRAY_SIZE(This->PChannel))
++		return S_FALSE;
++
+ 	range = 16 * dwBlockNum;
+ 	j = 0;
+ 	for (i = range; i < range+16; i++) {
+@@ -633,7 +636,6 @@ static HRESULT WINAPI IDirectMusicPerformance8Impl_AssignPChannelBlock(IDirectMu
+ 		This->PChannel[i].channel = j; /* FIXME: should this be assigned? */
+ 		j++;
+ 	}
+-	/*if (dwGroup > 2) return S_FALSE;*/
+ 
+ 	return S_OK;
+ }
+-- 
+2.17.1
+
diff --git a/patches/dmime-PChannel-range/definition b/patches/dmime-PChannel-range/definition
new file mode 100644
index 00000000..a9fcc6a3
--- /dev/null
+++ b/patches/dmime-PChannel-range/definition
@@ -0,0 +1,2 @@
+Fixes: [17766] Empire Earth crashes on start without native directmusic
+Fixes: [24740] Trinklet Supreme crashes on startup
diff --git a/patches/patchinstall.sh b/patches/patchinstall.sh
index 42935a65..b7af45b9 100755
--- a/patches/patchinstall.sh
+++ b/patches/patchinstall.sh
@@ -135,6 +135,7 @@ patch_enable_all ()
 	enable_dinput_reconnect_joystick="$1"
 	enable_dinput_remap_joystick="$1"
 	enable_directmanipulation_new_dll="$1"
+	enable_dmime_PChannel_range="$1"
 	enable_dsound_EAX="$1"
 	enable_dsound_Fast_Mixer="$1"
 	enable_dwmapi_DwmGetTransportAttributes="$1"
@@ -532,6 +533,9 @@ patch_enable ()
 		directmanipulation-new-dll)
 			enable_directmanipulation_new_dll="$2"
 			;;
+		dmime-PChannel-range)
+			enable_dmime_PChannel_range="$2"
+			;;
 		dsound-EAX)
 			enable_dsound_EAX="$2"
 			;;
@@ -3191,6 +3195,22 @@ if test "$enable_directmanipulation_new_dll" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset dmime-PChannel-range
+# |
+# | This patchset fixes the following Wine bugs:
+# |   *	[#17766] Empire Earth crashes on start without native directmusic
+# |   *	[#24740] Trinklet Supreme crashes on startup
+# |
+# | Modified files:
+# |   *	dlls/dmime/performance.c
+# |
+if test "$enable_dmime_PChannel_range" -eq 1; then
+	patch_apply dmime-PChannel-range/0001-dmime-Ensure-Channels-are-in-range-before-assignment.patch
+	(
+		printf '%s\n' '+    { "Alistair Leslie-Hughes", "dmime: Ensure Channels are in range before assignment.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset dsound-Fast_Mixer
 # |
 # | This patchset fixes the following Wine bugs: