diff --git a/Docs/src/compiler.but b/Docs/src/compiler.but
index 29d7217c..8e5ee42b 100644
--- a/Docs/src/compiler.but
+++ b/Docs/src/compiler.but
@@ -52,7 +52,7 @@ On POSIX platforms, !execute will use system() just like \R{system}{!system}.
 
 \c tempfile command
 
-This option makes the compiler an external EXE packer (such as Petite or UPX) to compress the executable header. Specify a temporary file name (such as "temp.dat") and a command line (such as "C:\\program files\\upx\\upx -9 temp.dat") to compress the header.
+This option makes the compiler use an external EXE packer (such as \W{http://www.un4seen.com/petite/}{Petite} or \W{http://upx.sourceforge.net/}{UPX}) to compress the executable header. Specify a temporary file name (such as "temp.dat") and a command line (such as "C:\\program files\\upx\\upx -9 temp.dat") to compress the header.
 
 \S1{system} !system
 
diff --git a/Docs/src/file.but b/Docs/src/file.but
index af2a3cb1..7cc48b21 100644
--- a/Docs/src/file.but
+++ b/Docs/src/file.but
@@ -47,7 +47,7 @@ Writes the integer interpretation of 'string' to a file opened with FileOpen. Of
 \c FileWriteByte file_handle "13"
 \c FileWriteByte file_handle "10"
 
-You can If an error occurs writing, the error flag will be set. Note that the low byte of the integer is used, i.e. writing 256 is the same as writing 0, etc.
+If an error occurs while writing, the error flag will be set. Note that the low byte of the integer is used, i.e. writing 256 is the same as writing 0, etc.
 
 \S2{FindClose} FindClose
 
diff --git a/Docs/src/flowcontrol.but b/Docs/src/flowcontrol.but
index 5ce56c1b..8584fce4 100644
--- a/Docs/src/flowcontrol.but
+++ b/Docs/src/flowcontrol.but
@@ -65,15 +65,15 @@ Checks for existence of file(s) file_to_check_for (which can be a wildcard, or a
 
 \S2{IfRebootFlag} IfRebootFlag
 
-\c [jump_if_set] [jump_if_not_set]
+\c jump_if_set [jump_if_not_set]
 
-Atleast one parameter is required.  Checks the reboot flag, and jumps to jump_if_set if the reboot flag is set, otherwise jumps to jump_if_not_set. The reboot flag can be set by Delete and Rename, or manually with SetRebootFlag.
+Checks the reboot flag, and jumps to jump_if_set if the reboot flag is set, otherwise jumps to jump_if_not_set. The reboot flag can be set by Delete and Rename, or manually with SetRebootFlag.
 
 \S2{ifsilent} IfSilent
 
-\c [jump_if_silent] [jump_if_not]
+\c jump_if_silent [jump_if_not]
 
-Atleast one parameter is required.  Checks the silent flag, and jumps to jump_if_silent if the installer is silent, otherwise jumps to jump_if_not. The silent flag can be set by \R{asilentinstall}{SilentInstall}, \R{asilentuninstall}{SilentUninstall}, \R{setsilent}{SetSilent} and by the user passing /S on the command line.
+Checks the silent flag, and jumps to jump_if_silent if the installer is silent, otherwise jumps to jump_if_not. The silent flag can be set by \R{asilentinstall}{SilentInstall}, \R{asilentuninstall}{SilentUninstall}, \R{setsilent}{SetSilent} and by the user passing /S on the command line.
 
 \S2{intcmp} IntCmp