diff --git a/.gitignore b/.gitignore
index b331c565d3..d188242529 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,11 @@
 /*.app
 /*.exe
 
+# Windows linking and debugging
+/*.pdb
+/*.ilk
+/GRacket.exe.manifest
+
 # a common convenient place to set the PLTADDON directory to
 /add-on/
 
diff --git a/collects/launcher/.gitignore b/collects/launcher/.gitignore
index a87aba3966..aa16eceeea 100644
--- a/collects/launcher/.gitignore
+++ b/collects/launcher/.gitignore
@@ -4,3 +4,5 @@ MzStart.exe
 MzStart3m.exe
 MrStart.exe
 MrStart3m.exe
+MrStart.pdb
+MzStart.pdb
diff --git a/src/mysterx/.gitignore b/src/mysterx/.gitignore
new file mode 100644
index 0000000000..33c2786bac
--- /dev/null
+++ b/src/mysterx/.gitignore
@@ -0,0 +1,13 @@
+myspage/myspage.h
+myspage/myspage_i.c
+myspage/myspage_p.c
+myspage/myspage.tlb
+myspage/myspage.res
+myspage/dlldata.c
+
+myssink/myssink.h
+myssink/myssink_i.c
+myssink/myssink_p.c
+myssink/myssink.tlb
+myssink/myssink.res
+myssink/dlldata.c
diff --git a/src/mzcom/.gitignore b/src/mzcom/.gitignore
new file mode 100644
index 0000000000..0fc6c14d27
--- /dev/null
+++ b/src/mzcom/.gitignore
@@ -0,0 +1,3 @@
+# Generated for 3m build:
+mzobj3m.cxx
+mzobj3m.sdep
diff --git a/src/racket/dynsrc/.gitignore b/src/racket/dynsrc/.gitignore
new file mode 100644
index 0000000000..76c3fba1e7
--- /dev/null
+++ b/src/racket/dynsrc/.gitignore
@@ -0,0 +1,4 @@
+# Generated during Windows build:
+mzdyn.exp
+mzdyn.lib
+mzdyn.obj
diff --git a/src/worksp/.gitignore b/src/worksp/.gitignore
new file mode 100644
index 0000000000..2f195b4d28
--- /dev/null
+++ b/src/worksp/.gitignore
@@ -0,0 +1,2 @@
+# MSVC build directory:
+*/Release
diff --git a/src/worksp/gc2/.gitignore b/src/worksp/gc2/.gitignore
new file mode 100644
index 0000000000..09d35b7823
--- /dev/null
+++ b/src/worksp/gc2/.gitignore
@@ -0,0 +1,9 @@
+xsrc
+xform-collects
+
+racket.res
+gracket.res
+
+mzdyn3m.exp
+mzdyn3m.lib
+mzdyn3m.obj
diff --git a/src/worksp/libmysterx/.gitignore b/src/worksp/libmysterx/.gitignore
new file mode 100644
index 0000000000..e80ca3ee8e
--- /dev/null
+++ b/src/worksp/libmysterx/.gitignore
@@ -0,0 +1,18 @@
+dotnet/_dotnet.h
+dotnet/_dotnet_i.c
+dotnet/_dotnet_p.c
+dotnet/_dotnet.idl
+dotnet/_dotnet.tlb
+dotnet/_dotnet.res
+dotnet/dlldata.c
+dotnet/Release
+
+myspage/Release
+myspage/vc80.idb
+
+myssink/Release
+myssink/vc80.idb
+
+gc_traverse.inc
+3m
+xsrc
diff --git a/src/worksp/mzcom/.gitignore b/src/worksp/mzcom/.gitignore
new file mode 100644
index 0000000000..03c8efe9b6
--- /dev/null
+++ b/src/worksp/mzcom/.gitignore
@@ -0,0 +1,8 @@
+mzcom.ncb
+mzcom.suo
+mzcom_h.h
+mzcom_i.c
+mzcom_p.c
+dlldata.c
+
+3m