Problems with Total Commander about vmwmouse HOT 8 OPEN

diff --git a/ps2.asm b/ps2.asm
index c8ef944..bf521bf 100644
--- a/ps2.asm
+++ b/ps2.asm
@@ -253,12 +253,12 @@ ps2_int proc    far
 	test    PS2_DATA_FLAG,0FFh
 	jz      ps2_int_exit            ;Not a valid PS/2 mouse interrupt
 
-	push    ax                      ;Save the world
-	push    bx
-	push    cx
-	push    dx
-	push    si
-	push    di
+	push    eax                      ;Save the world
+	push    ebx
+	push    ecx
+	push    edx
+	push    esi
+	push    edi
 	push    bp
 	push    ds
 	push    es
@@ -357,12 +357,12 @@ ps2_no_data:
 	pop     es
 	pop     ds
 	pop     bp
-	pop     di
-	pop     si
-	pop     dx
-	pop     cx
-	pop     bx
-	pop     ax
+	pop     edi
+	pop     esi
+	pop     edx
+	pop     ecx
+	pop     ebx
+	pop     eax
 
 ps2_int_exit:
 	pop ds
@@ -480,6 +480,10 @@ page
 ps2_search      proc    near
 
 	; Check for the VMware backdoor.
+	push	eax
+	push	ebx
+	push	ecx
+	push	edx
 	xor ebx, ebx
 	mov ecx, CMD_GETVERSION
 	call Backdoor
@@ -490,13 +494,18 @@ ps2_search      proc    near
 	; Under hypervisors, always assume the 286/386 PS/2 mouse vector
 	mov vector, 074h
 	stc                             ;Show mouse was found
-	ret
+	jmp	ps2_search_pop
 
 ps2_cant_use_it:
 	mov     vector,-1               ;Restore to "no mouse" value
 
 ps2_machine_not_found:
 	clc                             ;'C' clear shows not found
+ps2_search_pop:
+	pop	edx
+	pop	ecx
+	pop	ebx
+	pop	eax
 	ret
 
 ps2_search      endp
@@ -642,6 +651,10 @@ vmware_load_ini:
 	mov	wheel_enabled, ax
 
 vmware_enable_absolute:
+	push	eax
+	push	ebx
+	push	ecx
+	push	edx
 	; We need to do this *after* successfully setting up our hook.
 	; I don't know if these can fail, but OSDev Wiki doesn't check,
 	; and we do check if we're on something VMware-shaped before...
@@ -663,6 +676,10 @@ vmware_enable_absolute:
 	mov ebx, ABSPOINTER_ABSOLUTE
 	mov ecx, CMD_ABSPOINTER_COMMAND
 	call Backdoor
+	pop	edx
+	pop	ecx
+	pop	ebx
+	pop	eax
 
 ps2_enable_abort:
 	ret
@@ -728,9 +745,17 @@ ps2_disable_exit:
 	; (CB) Put the mouse back to relative on disable?
 
 	; Enable relative
+	push	eax
+	push	ebx
+	push	ecx
+	push	edx
 	mov ebx, ABSPOINTER_RELATIVE
 	mov ecx, CMD_ABSPOINTER_COMMAND
 	call Backdoor
+	pop	edx
+	pop	ecx
+	pop	ebx
+	pop	eax
 
 	ret