diff --git a/config/emulators/pc.conf b/config/emulators/pc.conf
index 2653f5f42..d72115cca 100644
--- a/config/emulators/pc.conf
+++ b/config/emulators/pc.conf
@@ -4,7 +4,7 @@ SYSTEM_MANUFACTURER="Microsoft"
SYSTEM_RELEASE="1981"
SYSTEM_HARDWARE="computer"
SYSTEM_PATH="/storage/roms/pc"
-SYSTEM_EXTENSION=".com .bat .exe .doszZ"
+SYSTEM_EXTENSION=".com .bat .exe .dosz"
SYSTEM_COMMAND="/usr/bin/runemu.sh %ROM% -P%SYSTEM% --core=%CORE% --emulator=%EMULATOR% --controllers=\"%CONTROLLERSCONFIG%\""
SYSTEM_PLATFORM="pc"
SYSTEM_THEME="pc"
diff --git a/documentation/PER_DEVICE_DOCUMENTATION/AMD64/SUPPORTED_EMULATORS_AND_CORES.md b/documentation/PER_DEVICE_DOCUMENTATION/AMD64/SUPPORTED_EMULATORS_AND_CORES.md
index 222af19db..d71d1e0af 100644
--- a/documentation/PER_DEVICE_DOCUMENTATION/AMD64/SUPPORTED_EMULATORS_AND_CORES.md
+++ b/documentation/PER_DEVICE_DOCUMENTATION/AMD64/SUPPORTED_EMULATORS_AND_CORES.md
@@ -46,7 +46,7 @@ This document describes all available systems emulators and cores available for
|Lexaloffle|PICO-8 (pico-8)|2015|`pico-8`|.sh .p8 .png|**pico-8:** pico8 (default)
**retroarch:** fake08
|
|Magnavox|Odyssey (odyssey2)|1979|`odyssey`|.bin .zip .7z|**retroarch:** o2em (default)
|
|Mattel|Intellivision (intellivision)|1979|`intellivision`|.int .bin .rom .zip .7z|**retroarch:** freeintv (default)
|
-|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .doszZ|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
+|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .dosz|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
|Microsoft|MSX (msx)|1983|`msx`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|MSX2 (msx2)|1988|`msx2`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|Xbox (xbox)|2001|`xbox`|.iso|**xemu:** xemu-sa (default)
|
diff --git a/documentation/PER_DEVICE_DOCUMENTATION/RK3326/SUPPORTED_EMULATORS_AND_CORES.md b/documentation/PER_DEVICE_DOCUMENTATION/RK3326/SUPPORTED_EMULATORS_AND_CORES.md
index 055d184bc..8771fdbd6 100644
--- a/documentation/PER_DEVICE_DOCUMENTATION/RK3326/SUPPORTED_EMULATORS_AND_CORES.md
+++ b/documentation/PER_DEVICE_DOCUMENTATION/RK3326/SUPPORTED_EMULATORS_AND_CORES.md
@@ -46,7 +46,7 @@ This document describes all available systems emulators and cores available for
|Lexaloffle|PICO-8 (pico-8)|2015|`pico-8`|.sh .p8 .png|**pico-8:** pico8 (default)
**retroarch:** fake08
|
|Magnavox|Odyssey (odyssey2)|1979|`odyssey`|.bin .zip .7z|**retroarch:** o2em (default)
|
|Mattel|Intellivision (intellivision)|1979|`intellivision`|.int .bin .rom .zip .7z|**retroarch:** freeintv (default)
|
-|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .doszZ|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
+|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .dosz|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
|Microsoft|MSX (msx)|1983|`msx`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|MSX2 (msx2)|1988|`msx2`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Milton Bradley|Vectrex (vectrex)|1982|`vectrex`|.bin .gam .vec .zip .7z|**retroarch:** vecx (default)
|
diff --git a/documentation/PER_DEVICE_DOCUMENTATION/RK3399/SUPPORTED_EMULATORS_AND_CORES.md b/documentation/PER_DEVICE_DOCUMENTATION/RK3399/SUPPORTED_EMULATORS_AND_CORES.md
index f3cc50047..4c5eeaae2 100644
--- a/documentation/PER_DEVICE_DOCUMENTATION/RK3399/SUPPORTED_EMULATORS_AND_CORES.md
+++ b/documentation/PER_DEVICE_DOCUMENTATION/RK3399/SUPPORTED_EMULATORS_AND_CORES.md
@@ -46,7 +46,7 @@ This document describes all available systems emulators and cores available for
|Lexaloffle|PICO-8 (pico-8)|2015|`pico-8`|.sh .p8 .png|**pico-8:** pico8 (default)
**retroarch:** fake08
|
|Magnavox|Odyssey (odyssey2)|1979|`odyssey`|.bin .zip .7z|**retroarch:** o2em (default)
|
|Mattel|Intellivision (intellivision)|1979|`intellivision`|.int .bin .rom .zip .7z|**retroarch:** freeintv (default)
|
-|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .doszZ|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
+|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .dosz|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
|Microsoft|MSX (msx)|1983|`msx`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|MSX2 (msx2)|1988|`msx2`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Milton Bradley|Vectrex (vectrex)|1982|`vectrex`|.bin .gam .vec .zip .7z|**retroarch:** vecx (default)
|
diff --git a/documentation/PER_DEVICE_DOCUMENTATION/RK3566-X55/SUPPORTED_EMULATORS_AND_CORES.md b/documentation/PER_DEVICE_DOCUMENTATION/RK3566-X55/SUPPORTED_EMULATORS_AND_CORES.md
index 96cab0fa8..f7c79a0b0 100644
--- a/documentation/PER_DEVICE_DOCUMENTATION/RK3566-X55/SUPPORTED_EMULATORS_AND_CORES.md
+++ b/documentation/PER_DEVICE_DOCUMENTATION/RK3566-X55/SUPPORTED_EMULATORS_AND_CORES.md
@@ -46,7 +46,7 @@ This document describes all available systems emulators and cores available for
|Lexaloffle|PICO-8 (pico-8)|2015|`pico-8`|.sh .p8 .png|**pico-8:** pico8 (default)
**retroarch:** fake08
|
|Magnavox|Odyssey (odyssey2)|1979|`odyssey`|.bin .zip .7z|**retroarch:** o2em (default)
|
|Mattel|Intellivision (intellivision)|1979|`intellivision`|.int .bin .rom .zip .7z|**retroarch:** freeintv (default)
|
-|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .doszZ|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
+|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .dosz|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
|Microsoft|MSX (msx)|1983|`msx`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|MSX2 (msx2)|1988|`msx2`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Milton Bradley|Vectrex (vectrex)|1982|`vectrex`|.bin .gam .vec .zip .7z|**retroarch:** vecx (default)
|
diff --git a/documentation/PER_DEVICE_DOCUMENTATION/RK3566/SUPPORTED_EMULATORS_AND_CORES.md b/documentation/PER_DEVICE_DOCUMENTATION/RK3566/SUPPORTED_EMULATORS_AND_CORES.md
index 96cab0fa8..f7c79a0b0 100644
--- a/documentation/PER_DEVICE_DOCUMENTATION/RK3566/SUPPORTED_EMULATORS_AND_CORES.md
+++ b/documentation/PER_DEVICE_DOCUMENTATION/RK3566/SUPPORTED_EMULATORS_AND_CORES.md
@@ -46,7 +46,7 @@ This document describes all available systems emulators and cores available for
|Lexaloffle|PICO-8 (pico-8)|2015|`pico-8`|.sh .p8 .png|**pico-8:** pico8 (default)
**retroarch:** fake08
|
|Magnavox|Odyssey (odyssey2)|1979|`odyssey`|.bin .zip .7z|**retroarch:** o2em (default)
|
|Mattel|Intellivision (intellivision)|1979|`intellivision`|.int .bin .rom .zip .7z|**retroarch:** freeintv (default)
|
-|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .doszZ|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
+|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .dosz|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
|Microsoft|MSX (msx)|1983|`msx`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|MSX2 (msx2)|1988|`msx2`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Milton Bradley|Vectrex (vectrex)|1982|`vectrex`|.bin .gam .vec .zip .7z|**retroarch:** vecx (default)
|
diff --git a/documentation/PER_DEVICE_DOCUMENTATION/RK3588/SUPPORTED_EMULATORS_AND_CORES.md b/documentation/PER_DEVICE_DOCUMENTATION/RK3588/SUPPORTED_EMULATORS_AND_CORES.md
index 83635fd2e..6360d44d0 100644
--- a/documentation/PER_DEVICE_DOCUMENTATION/RK3588/SUPPORTED_EMULATORS_AND_CORES.md
+++ b/documentation/PER_DEVICE_DOCUMENTATION/RK3588/SUPPORTED_EMULATORS_AND_CORES.md
@@ -46,7 +46,7 @@ This document describes all available systems emulators and cores available for
|Lexaloffle|PICO-8 (pico-8)|2015|`pico-8`|.sh .p8 .png|**pico-8:** pico8 (default)
**retroarch:** fake08
|
|Magnavox|Odyssey (odyssey2)|1979|`odyssey`|.bin .zip .7z|**retroarch:** o2em (default)
|
|Mattel|Intellivision (intellivision)|1979|`intellivision`|.int .bin .rom .zip .7z|**retroarch:** freeintv (default)
|
-|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .doszZ|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
+|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .dosz|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
|Microsoft|MSX (msx)|1983|`msx`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|MSX2 (msx2)|1988|`msx2`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Milton Bradley|Vectrex (vectrex)|1982|`vectrex`|.bin .gam .vec .zip .7z|**retroarch:** vecx (default)
|
diff --git a/documentation/PER_DEVICE_DOCUMENTATION/S922X/SUPPORTED_EMULATORS_AND_CORES.md b/documentation/PER_DEVICE_DOCUMENTATION/S922X/SUPPORTED_EMULATORS_AND_CORES.md
index 2471c666a..7468e4828 100644
--- a/documentation/PER_DEVICE_DOCUMENTATION/S922X/SUPPORTED_EMULATORS_AND_CORES.md
+++ b/documentation/PER_DEVICE_DOCUMENTATION/S922X/SUPPORTED_EMULATORS_AND_CORES.md
@@ -46,7 +46,7 @@ This document describes all available systems emulators and cores available for
|Lexaloffle|PICO-8 (pico-8)|2015|`pico-8`|.sh .p8 .png|**pico-8:** pico8 (default)
**retroarch:** fake08
|
|Magnavox|Odyssey (odyssey2)|1979|`odyssey`|.bin .zip .7z|**retroarch:** o2em (default)
|
|Mattel|Intellivision (intellivision)|1979|`intellivision`|.int .bin .rom .zip .7z|**retroarch:** freeintv (default)
|
-|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .doszZ|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
+|Microsoft|MS-DOS (pc)|1981|`pc`|.com .bat .exe .dosz|**retroarch:** dosbox_pure
**retroarch:** dosbox_svn
|
|Microsoft|MSX (msx)|1983|`msx`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Microsoft|MSX2 (msx2)|1988|`msx2`|.dsk .mx1 .mx2 .rom .zip .7z .m3u|**retroarch:** bluemsx (default)
**retroarch:** fmsx
|
|Milton Bradley|Vectrex (vectrex)|1982|`vectrex`|.bin .gam .vec .zip .7z|**retroarch:** vecx (default)
|